. >> reporter: andrew bagby. did anyone have more friends than he?ense to have him as best man. >> i can only assume you would have asked him to be your best man. >> a friend of 20 some odd ye s years, sum it up in two minutes or people will start looking at the champagne and say, bagby, shut up or die. >> there was a lot to say. >> charismatic, opinionated. >> really a good story teller. >> a giant of a man. >> animated. >> kind. >> caring. >> jubilant. >> laid back. >> very approachable. >> so intelligent. and -- sorry. >> sad. >> why? >> i'll tell you about it some day. >> do you know who that is? >> andrew. why andrew get killed? >> reporter: it was november, 2001, when dr. andrew bagby, 28 years old, was found in hospital scrubs lying face down in a state park in derry township, pennsylvania. he had been shot five times including once in the back of the head, execution style. >> i said, my son murdered? >> i threw the phone at the desk and i jumped up and just screamed, no. >> he's so loved. i thought, you know, who would want to kill him? >> re