Pennsylvania ? A pastor fatally shot one of his eight children on Christmas Day during a dispute at the family home, where more than a dozen relatives had gathered to celebrate the holiday, police said.

Kirk Caldwell killed 21-year-old Jordan Caldwell after intervening in a violent confrontation between the son and a woman at around 2 p.m. at their home in suburban Philadelphia, Darby Borough police said Friday.

Kirk Caldwell fired a single shot, striking his son in the chest, Police Chief Robert Smythe said. Jordan Caldwell died at a hospital shortly afterward, police said.

Smythe, who noted he had met Kirk Caldwell a couple of times, called the pastor a “very good man” and said he was “quite surprised.”

“I find this is not something I would expect this guy to do,” Smythe said.