READING, Pa. -

A jury that convicted a man of murder earlier this week has spared him the death penalty.

Donald Williams was sentenced to life in prison Friday afternoon after the jury could not come to a unanimous decision on a death sentence.

Williams was found guilty Wednesday of first degree murder, rape and related charges for an attack that eventually led to the death of his former girlfriend, Maria Serrano, in Reading in 2009.

Williams, prosecutors said, broke into Serrano's home on June 25, 2009, pulled her from the shower, stabbed her with a screwdriver and raped her. Serrano was then dragged down to her basement, doused with gasoline and set on fire. She died in a hospital about six weeks later.