A man has been arrested on murder and arson charges in Philadelphia in the deaths of a boxer and four members of his family in a 2003 fire.

Homicide Capt. James Clark says the crime stemmed from "a bar fight and pride."

Thirty-two-year-old Abdu Rivera was arrested Monday over the November 2003 fire.

Clark says 23-year-old boxer John Santiago had gotten into a fight with Rivera and others outside a club, and they found out where he lived and set fire to his Olney home.

Killed were Santiago, his 41-year-old mother, Francisca DeJesus, his 17-year-old brother, Alex, his 17-year-old girlfriend, Clarissa Davila, and their 3-month-old daughter, Jacquelyn.

An attorney who once represented Rivera said Tuesday he isn't his lawyer anymore. It wasn't immediately clear whether Rivera has retained new counsel.