CHARLIE Sheen's wife, whom he allegedly assaulted, is now in rehab for substance abuse.
The development appears to seriously jeopardise the criminal case against Sheen - for the prosecution's case boils down to Charlie's word against Brooke Mueller's.
She claims he put a knife to her throat and threatened her life. He denies it.
Brooke, mother of their nine-month-old twins, reportedly had been drinking before she called emergency services and that could affect her credibility.
Brooke checked into The Canyon rehab facility in Malibu last Tuesday - the day after the Two And A Half Men star's arraignment on felony and misdemeanour charges.
If Brooke struggled with substance abuse around the Christmas Day incident, it could severely impact her credibility, TMZ web site reports.
Sheen has a history of drug abuse and abuse of women. His previous wife, actress Denise Richards, while pregnant with their second daughter Lola, filed for divorce accusing Sheen of abusing drugs and alcohol and threatening Richards with violence in March 2005.
