The 13 people killed when an Army psychiatrist allegedly opened fire on fellow soldiers at Fort Hood, Texas, included several people who shared the same profession as the alleged shooter, a father of three with ties to Laos whose family had a history of military service, a civilian who had returned to work a week after suffering a heart attack, and a psychiatric nurse who arrived at Fort Hood a day before the shooting. Here is a look at the victims.

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Michael Grant Cahill

Cahill, a 62-year-old physician assistant, suffered a heart attack two weeks ago and returned to work at the base as a civilian employee after taking just one week off for recovery, said his daughter Keely Vanacker.

"He survived that. He was getting back on track, and he gets killed by a gunman," Vanacker said, her words bare with shock and disbelief.

Cahill, of Cameron, Texas, helped treat soldiers returning from tours of duty or preparing for deployment. Often, Vanacker said, Cahill would walk young soldiers where they needed to go, just to make sure they got the right treatment.

"He loved his patients, and his patients loved him," said Vanacker, 33, the oldest of Cahill's three adult children. "He just felt his job was important."

Cahill, who was born in Spokane, Wash., had worked as a civilian contractor at Fort Hood for about four years, after jobs in rural health clinics and at Veterans Affairs hospitals. He and his wife, Joleen, had been married 37 years.

Vanacker described her father as a gregarious man and a voracious reader who could talk for hours about any subject.

The family's typical Thanksgiving dinners ended with board games and long conversations over the table, said Vanacker, whose voice often cracked with emotion as she remembered her father. "Now, who I am going to talk to?"

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Maj. Libardo Eduardo Caraveo

Caraveo, 52, of Woodbridge, Va., arrived in the United States in his teens from Ciudad Juarez, Mexico, knowing very little English said his son, also named Eduardo Caraveo.

He earned his doctorate in psychology from the University of Arizona and worked with bilingual special-needs students at Tucson-area schools before entering private practice.

His son told the Arizona Daily Star in Tucson that Caraveo had arrived at Fort Hood on Wednesday and was preparing to deploy to Afghanistan. Eduardo Caraveo spoke to the newspaper from his mother's Tucson home.

His father's Web site says he offered marriage seminars with a company based in Woodbridge, Va.

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Staff Sgt. Justin M. DeCrow

DeCrow, 32, was helping train soldiers on how to help new veterans with paperwork and had felt safe on the Army post.

"He was on a base," his wife, Marikay DeCrow, said in a telephone interview from the couple's home in Evans, Ga. "They should be safe there. They should be safe."

In a statement Saturday, she said her husband's "infectious charm and wit always put others at ease."

His wife said she wanted everyone to know what a loving man he was. The couple have a 13-year-old daughter, Kylah.

"He was well loved by everyone," she said through sobs. "He was a loving father and husband and he will be missed by all."

The couple were high school sweethearts who married in 1996. Marikay DeCrow said her husband was first stationed at Fort Gordon in 2000, and she had hoped they would reunite at their home in nearby Evans when another post there opened up.

DeCrow was stationed in Korea from September 2008 to August. He left in September to go to Fort Hood.

His father, Daniel DeCrow, of Fulton, Ind., said he talked to his son last week to ask him how things were going at Fort Hood.

"As usual, the last words out of my mouth to him were that I was proud of him," he said. "That's what I said to him every time _ that I loved him and I was proud of what he was doing. I can carry that around in my heart."

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Capt. John Gaffaney

Gaffaney, 56, was a psychiatric nurse who worked for San Diego County, Calif., for more than 20 years and had arrived at Fort Hood the day before the shooting to prepare for a deployment to Iraq.

Gaffaney, who was born in Williston, N.D., had served in the Navy and later the California National Guard as a younger man, his family said. After the Sept. 11 terrorist attacks, he tried to sign up again for military service. Although the Army Reserves at first declined, he got the call about two years ago asking him to rejoin, said his close friend and co-worker Stephanie Powell.

"He wanted to help the boys in Iraq and Afghanistan deal with the trauma of what they were seeing," Powell said. "He was an honorable man. He just wanted to serve in any way he can."

His family described him as an avid baseball card collector and fan of the San Diego Padres who liked to read military novels and ride his Harley-Davidson motorcycle.

Gaffaney supervised a team of six social workers, including Powell, at the county's Adult Protective Services department. Ellen Schmeding, assistant deputy director for the county's Health and Human Services Agency, said Gaffaney was a strong leader.

He is survived by a wife and a son.

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Spc. Frederick Greene

Greene, 29, of Mountain City, Tenn., went by "Freddie" and was active at Baker's Gap Baptist Church while he was growing up, said Glenn Arney, the church's former superintendent and a former co-worker of Greene's.

"I went to church with him, knew him all of his life. He was one of the finest boys you ever saw," Arney said.

Arney worked with Greene for several years at A.C. Lumber and Truss in Mountain City. The company designs and builds trusses, which are structures that support the roofs and floors of houses and other buildings.

"He was a hard worker. He was a computer whiz. He could design a truss. He could do about anything," Arney said.

His family released a statement Sunday calling him a loving son, husband and father, who often acted as the family's protector.

"Even before joining the Army, he exemplified the Army values of loyalty, duty, respect, selfless service, honor, integrity and personal courage," the family said.

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Spc. Jason Dean Hunt

Hunt, 22, of Frederick, Okla., went into the military after graduating from Tipton High School in 2005 and had got married just two months ago, his mother, Gale Hunt, said. He had served 3 1/2 years in the Army, including a stint in Iraq.

Gale Hunt said two uniformed soldiers came to her door late Thursday night to notify her of her son's death.

Hunt, known as J.D., was "just kind of a quiet boy and a good kid, very kind," said Kathy Gray, an administrative assistant at Tipton Schools.

His mother said he was family oriented.

"He didn't go in for hunting or sports," Gale Hunt said. "He was a very quiet boy who enjoyed video games."

He had re-enlisted for six years after serving his initial two-year assignment, she said. Jason Hunt was previously stationed at Fort Stewart in Georgia.

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Sgt. Amy Krueger

Krueger, 29, of Kiel, Wis., joined the Army after the 2001 terrorist attacks and had vowed to take on Osama bin Laden, her mother, Jeri Krueger said.

Amy Krueger arrived at Fort Hood on Tuesday and was scheduled to be sent to Afghanistan in December, her mother told the Herald Times Reporter of Manitowoc.

Jeri Krueger recalled telling her daughter that she could not take on bin Laden by herself.

"Watch me," her daughter replied.

Kiel High School Principal Dario Talerico told The Associated Press that Krueger graduated from the school in 1998 and had spoken at least once to local elementary school students about her career.

"I just remember that Amy was a very good kid, who like most kids in a small town are just looking for what their next step in life was going to be and she chose the military," Talerico said. "Once she got into the military, she really connected with that kind of lifestyle and was really proud to serve her country."

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Pfc. Aaron Thomas Nemelka

Nemelka, 19, of the Salt Lake City suburb of West Jordan, Utah, chose to join the Army instead of going on a mission for The Church of Jesus Christ of Latter-day Saints, his uncle Christopher Nemelka said.

"As a person, Aaron was as soft and kind and as gentle as they come, a sweetheart," his uncle said. "What I loved about the kid was his independence of thought."

Aaron Nemelka was proud to serve and felt keenly the responsibility of representing his nation and his family, said another uncle, Michael Blades. Blades said several of Nemelka's relatives were in the military, including a grandfather who served in the Korean War and received a Purple Heart.

"He felt it was his duty to stand with them in defense of our country," Blades said.

Nemelka enjoyed soccer, bowling and snowboarding, and was an avid fan of the Utah Utes, he said.

The youngest of four children, Nemelka was scheduled to be deployed to Afghanistan in January, his family said in a statement. Nemelka had enlisted in the Army in October 2008, Utah National Guard Lt. Col. Lisa Olsen said.

Blades said Nemelka had a tremendous love for his family and a deep sense of duty.

"His mission is completed," Blades said, his voice breaking. "He now serves a higher calling in heaven."

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Pfc. Michael Pearson

Pearson, 22, of the Chicago suburb of Bolingbrook, Ill., quit what he figured was a dead-end furniture company job to join the military about a year ago.

Pearson's mother, Sheryll Pearson, said the 2006 Bolingbrook High School graduate joined the military because he was eager to serve his country and broaden his horizons.

"He was the best son in the whole world," she said. "He was my best friend and I miss him."

His cousin, Mike Dostalek, showed reporters a poem Pearson wrote. "I look only to the future for wisdom. To rock back and forth in my wooden chair," the poem says.

At Pearson's family home Friday, a yellow ribbon was tied to a porch light and a sticker stamped with American flags on the front door read, "United we stand."

Neighbor Jessica Koerber, who was with Pearson's parents when they received word Thursday their son had died, described him as a man who clearly loved his family _ someone who enjoyed horsing around with his nieces and nephews, and other times playing his guitar.

"That family lost their gem," she told the AP. "He was a great kid, a great guy. ... Mikey was one of a kind."

Sheryll Pearson said she hadn't seen her son for a year because he had been training. She told the Tribune that when she last talked to him on the phone two days ago, they had discussed how he would come home for Christmas.

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Capt. Russell Seager

Seager, 51, of Racine, Wis., was a psychiatrist who joined the Army a few years ago because he wanted to help veterans returning to civilian life, said his uncle, Larry Seager of Mauston.

Russell Seager's brother-in-law, Dennis Prudhomme, said Seager had worked with soldiers at the Veterans Affairs hospital in Milwaukee who were suffering from post-traumatic stress disorder. He also taught classes at Bryant & Stratton College in Milwaukee, said Prudhomme, who is married to Seager's sister.

Larry Seager said his nephew's death left the family stunned, especially because the psychiatrist only wanted to help soldiers improve their mental health.

"It's unbelievable. He goes down there to help out soldiers and then he ... ," Seager said, his voice trailing off. "I still can't believe it."

Russell Seager is survived by a wife and 20-year-old son.

Prudhomme said Seager was scheduled to go to Afghanistan in December and had gone to Fort Hood for training.

"Our family has suffered a great loss and we are all devastated," Seager's sister, Barbara Prudhomme, said in a statement read by her husband. "We are very proud of the way Russell lived his life, both personally and professionally, and our hearts go out to all the victims and their families."

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Pvt. Francheska Velez

Velez, 21, of Chicago, was pregnant and preparing to return home. A friend of Velez's, Sasha Ramos, described her as a fun-loving person who wrote poetry and loved dancing.

"She was like my sister," Ramos, 21, said. "She was the most fun and happy person you could know. She never did anything wrong to anybody."

Family members said Velez had recently returned from deployment in Iraq and had sought a lifelong career in the Army.

"She was a very happy girl and sweet," said her father, Juan Guillermo Velez, his eyes red from crying. "She had the spirit of a child."

Ramos, who also served briefly in the military, couldn't reconcile that her friend was killed in this country just after leaving a war zone.

"It makes it a lot harder," she said. "This is not something a soldier expects _ to have someone in our uniform go start shooting at us."

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Lt. Col. Juanita Warman

Warman, 55, of Havre De Grace, Md., was a military physician assistant with two daughters and six grandchildren.

She came from a military family, said her half-sister, Kristina Rightweiser. Their father, who died in 2007, was a "career military man," Rightweiser served in the Air Force, and Rightweiser's brother is in the Coast Guard. The two women didn't grow up together, but reconnected after their father's death, Rightweiser said.

Warman "loved the Army and loved her family very much," Rightweiser said in a message sent through Facebook.

Warman volunteered with Beyond the Yellow Ribbon, a reintegration program for Maryland National Guard soldiers returning from deployment overseas, according to Guard officials. She provided mental health counseling and helped develop a program about the myths and realities of post-traumatic stress disorder.

"She was an all-around nice person as well as a very competent professional," said Col. Sean Lee, a Maryland National Guard chaplain who worked with Warman. "We're all going to miss her quite a lot."

Lt. Col. Charles Kohler, a spokesman for the Maryland Guard, said Warman was at Fort Hood preparing for deployment to Iraq.

Warman had worked at the University of Pittsburgh Medical Center and Perry Point Veterans Affairs Medical Center in Maryland.

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Pfc. Kham Xiong

Xiong, 23, of St. Paul, Minn., was a father of three whose family had a history of military service.

Xiong's father, Chor Xiong, is a native of Laos who fought the Viet Cong alongside the CIA in 1972; Chor's father, Kham's grandfather, also fought with the CIA; and Kham's brother, Nelson, is a Marine serving in Afghanistan.

Xiong's father said he was "very mad." Through sniffles and tears, he said his son died for "no reason" and he has a hard time believing Kham is gone.

Kham Xiong was preparing to deploy to Afghanistan, and his sister Mee Xiong said the family would be able to understand if he would have died in battle.

"He didn't get to go overseas and do what he's supposed to do, and he's dead ... killed by our own people," Mee Xiong said.

Xiong was one of 11 siblings and came to the U.S. when he was just a toddler. He grew up in California, then moved to Minnesota with the family about 10 years ago, Chor Xiong said.

He was married and had three children ages 4, 2 and 10 months. His wife, Shoua, said they started dating in eighth grade, and the last time she saw her husband was Thursday morning at their Texas home.

She said he gave everyone a kiss and went to work. "It was an ordinary day," she said. After she heard about the shooting, she tried to call him, but never got an answer.

At 3 a.m. Friday, the doorbell rang.

"My heart dropped," she said. "I knew the reason they were here, but I asked them to tell me he was OK."

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Associated Press writers Ben Nuckols in Baltimore, Jessica Gresko in Washington, Angela K. Brown at Fort Hood, Texas, Kate Brumback in Atlanta, Deanna Martin in Indianapolis, Desiree Hunter in Montgomery, Ala., Elliot Spagat in San Diego, Thomas Watkins in Los Angeles, Monica Rohr in Houston, Jennifer Dobner in Salt Lake City, Richard Green in Oklahoma City, Caryn Rousseau in Bolingbrook, Ill., and Robert Imrie in Wausau, Wis., and Sophia Tareen, Michael Tarm and Amy Shafer in Chicago contributed to this report. Forliti contributed from St. Paul, Minn.