A prison inmate has testified that a former Utah doctor acknowledged killing his wife by saying he was getting away with murder.

The testimony came Wednesday as a trial resumed in the case against Martin MacNeill.

Witness Jason Poirier recounted the conversation with MacNeill in December 2012 at Utah County jail a few months after MacNeill's arrest in the death. Poirier was being held on suspicion of shoplifting.

Three other prison inmates testified Tuesday that MacNeill regularly cursed his wife and bragged that investigators couldn't prove he killed her.

Those inmates were from a federal prison in Texas where MacNeill was held on fraud charges.

Prosecutors are expected to wrap up their case Wednesday.

MacNeill is accused of knocking out Michele MacNeill with drugs after cosmetic surgery, then leaving her in a bathtub.