ROCHESTER, N.Y. — A high school dropout has been sentenced to life in prison without parole for killing four people in Rochester during two robberies over the Christmas holidays last year.

Jaquan Clark drew the maximum penalty Tuesday for shooting, stabbing and bludgeoning three people at a jewelry merchant’s home last Dec. 26 and shooting a man to death outside another house three days earlier.

Jurors decided in October that Clark, either acting alone or with others, killed 62-year-old Donald MacMaster, 33-year-old Jeffrey Szymkowski and 17-year-old Arielle Griffin at a jewelry business MacMaster operated from his home.

They also agreed Clark, who’s 18, shot to death 37-year-old Alfredo Ocasio in the driveway of a house.