Police released the audio of Brooke Mueller’s 911 call yesterday, in which she says, “I’m scared for my life” after being “threatened” by husband Charlie Sheen. Mueller told the operator “we have people separating us,” but Sheen was “trying to sneak out the back” of the house. And in a police affidavit obtained by TMZ, Mueller says that during a Christmas Eve argument she told Sheen she wanted a divorce. He then straddled her on a bed, she claims, held a knife to her throat, and said, “You better be in fear. If you tell anybody, I’ll kill you.”