An argument in Bristol Township between brothers-in-law turned fatal early Sunday morning when one shot and killed the other, authorities said.
Township police were called to a home in the 4400 block of Fayette Drive at 3:28 a.m., said Daniel Sweeney, a chief deputy in the Bucks County District Attorney's Office.
When police and paramedics arrived, they found the body of the victim. Police have detained "a person of interest," Sweeney said.
Authorities did not release the names of the victim or the alleged shooter.