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(Yahoo!) - It's hard to imagine that As I Lay Dying frontman Tim Lambesis could be up on charges for allegedly hiring someone to kill his estranged wife, Meggan. Yet the evidence against Lambesis seems pretty damning, which is why the singer is being held on $3 million bail at a detention center in Vista, California.

But remember, Lambesis is innocent until proven guilty, and his attorney insists proving the singer guilt is going to present a great challenge for the prosecution because his client likely was set up.

Lambesis was arrested on May 7 at 2 p.m. in front of a Barnes & Noble in Oceanside, California, and he was charged with trying to hire an undercover agent to assassinate Meggan. On May 9, Lambesis pleaded not guilty to the charges against him. Allegedly, Lambesis wanted to hire someone to kill his estranged wife because she would not let his see his children and was making an agreed-upon divorce "impossible."

At his arraignment on Thursday, Lambesis was ordered to wear a GPS monitor and turn in his passport to reduce the chance that he will flee. Also, a judge warned him that if he makes bail, he must stay away from his family. If convicted, Lambesis faces up to nine years in state prison.

His attorney, Anthony Salerno, says Lambesis originally faced the possibility of a life sentence. Initially, prosecutors asked Superior Court Judge Martin Stavan to set Lambesis’s bail at $20 million, because they insisted the singer still remains "substantially motivated to kill his wife."

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