The Bucks County Courier Times says jurors deliberated for nearly eight hours before convicting 20-year-old Jermaine M. Jackson of Trenton, N.J. of second-degree murder on Monday.
On Thursday morning Jackson was sentenced to life in prison for his role.
Authorities said Jackson conspired with four others in the robbery attempt that ended in the slaying of 56-year-old Danny DeGennaro of Levitttown.
Jurors also convicted Jackson of robbery and conspiracy but acquitted him of first-degree murder, burglary and possessing an instrument of crime.
Defense attorney Craig Penglase vowed to appeal. He said his client had been invited to the home for a drug transaction but had left by the time of the murder.
The Associated Press contributed to this report.