Earl Allayne, Jr. surrendered to police in Old Bridge after a brief pursuit and an attempt to hide from officers in an apartment complex utility room.
Investigators say Allayne randomly assaulted the 51-year-old victim on Wednesday, knocking him unconscious and causing him to suffer a skull fracture and a broken jaw. The victim died in the hospital on Friday.
20-year-old Allayne faces murder and robbery charges.