DENVER (CBS4)- A man accused in the stabbing death of a woman last summer was found guilty by a Denver jury and sentenced to life in prison.

Roberto Santisteven was found guilty of second-degree murder, first-degree felony murder and second-degree burglary on Friday.

He was immediately sentenced to life in prison without the possibility of parole.

On Aug, 7, 2011, Santisteven, 54, entered the apartment of Crystal Crespin, 32, and stabbed her to death. He was violating a restraining order at the time.

Witnesses and neighbors responding to Crespin’s screams detained Santisteven at the scene until Denver police officers arrived and took him into custody.