A man who killed a prostitute after having sex with her in a Wyoming, Michigan, industrial park faces mandatory life in prison without parole after being convicted of first-degree murder.

A jury deliberated for two days before finding 31-year-old Sid Jones guilty on Wednesday.

Prosecutors say Jones picked up 38-year-old Janeane Lusk on March 26, 2008 while driving his fiancee's car, had sex with her, then stabbed her three times.

Laura Dykstra testified during the weeklong Kent County Circuit Court trial that she had sex with Jones in the parking lot where Lusk's body was found, then was ordered from the vehicle at knifepoint.

She helped police identify Jones.

Jones testified he had sex with Lusk, but did not kill her or threaten Dykstra.

He will be sentenced August 4.