MEMPHIS, Tenn. (AP) — Police say Memphis musician B.B. Cunningham, who played with Jerry Lee Lewis and scored a hit with "Let it All Hang Out" with his own band, the Hombres, was trying to help a fellow security guard when he and a teenager were killed in a shootout.

Memphis police say the 70-year-old Cunningham, a security guard at an apartment complex, died early Sunday.

Police said a 16-year-old boy and a 22-year-old man had fired shots at another security guard at the complex when Cunningham responded.

Cunningham chased them into another apartment complex. When the second guard arrived, he found Cunningham and the 16-year-old fatally shot in a courtyard.

Police spokeswoman Karen Rudolph says the 22-year-old man, who had fled the scene, has been charged with first-degree murder for allegedly shooting Cunningham.