The jurors are considering the case against 20-year-old Jermaine Jackson.
Prosecutors say Jackson, along with four other men, conspired to rob Danny DeGennaro at his Levittown, Pa. home back in December 2011.
But a fight broke out and DeGennaro was shot and killed.
Prosecutors say Jackson was not the one who pulled the trigger.
But they believe he did plan the robbery.
DeGennaro was a popular local musician who played with Bo Diddley and Billy Squier, among others.
He was also known for holding small concerts to raise money for local causes.
A Facebook page entitled "Levittown Vows Justice" was created in DeGennaro's honor.