The heartbroken fiancée of a father who was murdered while protecting his 14-year-old son outside his home has recalled horrific details leading to his death. Tracy Karopchinsky, 44, described how Christopher Wright, 43, was killed on his doorstep by five bullies after being dragged into a fight that started at Brooklyn Park Middle School and moved to his house in Anne Arundel County. The attackers - comprising of three teenagers and two adults - continued to punch Wright, who was already unconscious and bleeding out, before they fled the scene. They told his 12-year-old son: 'I'm sorry, call 911.' Remnants...