A 44-year-old pastor of a Philadelphia church allegedly shot and killed his 21-year-old son during an argument at the father's Darby Borough home around 2 p.m. on Christmas, according to Darby Borough Police Chief Robert Smythe.

Speaking to NBC10 News last night, Smythe said the Rev. Kirk Caldwell became involved in a domestic dispute between his son, Jordan, and a female at his house on Ridge Avenue. Delaware County officials were still debating last night what charges to file.

Kirk Caldwell is a pastor at End Times Harvest Mission for Christ in North Philadelphia, NBC10 said. - Matt Katz