A pretty big oops in Lima, Ohio, this week: Markelus Carter is charged with murder, and during a break in his trial Wednesday, a guard accidentally put him in the same holding cell with another inmate who was set to testify against him. Neither man was handcuffed, and a fight broke out, but "within minutes we were able to go in and break up the two," the local sheriff says, adding that there will be an investigation into the misstep. Carter walked back into the courtroom "visibly shaken" and with red marks on his face, the Lima News reports; the sheriff described the injuries to both men as "minor." The judge wouldn't grant a mistrial, but allowed the jury to watch video of the fight, Your News Now reports; the witness testified the next day. (More murder trial stories.)