loric along the jog trail. police and tracker dogs sniffed his track right to the door. his picture was chosen from the lineup and it appears he committed suicide just as police were about to arrest him. after forrer's suicide, scientists took a dna sample in the morgue and compared fisher's dna profile to the biological evidence from kathy loric's rape test kit. shockingly it didn't match. >> we strongly believe that mark fisher was responsible for kathy's death. all of a sudden he's not. what that means is we have an individual out walking about who can do this again. >> it basically meant we had to start at ground zero and do this over again. >> with a killer on the loose, investigators instituted a dna dragnet of all the homeless men in the area who had a violent history. >> we began contacting everybody