It all started with a quarrel over who was going to walk the dog, officials say.
Now, police in Chester County are looking for a man charged with murdering his stepfather.
An arrest warrant has been issued for Devaine Justin Scott, 19, of Caln Township, after he allegedly shot Joseph Durham on Monday during a fight.
According to police, Scott had just finished a shower when Durham asked him to take the family dog for a walk before going to bed. The two quarreled, then began fighting. Michele Durham, the victim's wife and the defendant's mother, fled with her two younger children, drove to the Caln police station, and called to police from outside.