Realization Hit News Today

Archie mcfarland had been targeted and executed. and whoever killed him had escaped without leaving behind a murder weapon or fingerprints or a hair from what must have been a violent struggle. anyway, this was pre-dna. >> they just didnt have any physical piece of anything left on the driveway. that was the big focus. >> reporter: but there was a clue. oh, yes. and it was, frankly, very, very strange. >> one of the stab wounds was in the groin area. >> reporter: what did that tell you? >> its p...

>> reporter: about that on that crisp december morning as gary and his mother stood shivering and sobbing, the realization hit. >> i turned around and looked at my mom. i go, you know who did this. i just -- i immediately knew. i just -- it was like, theres no doubt in my mind what happened. >> coming up, there was someone else who also seemed to know who the killer was. >> how could you do this? do you know what youve done? youve destroyed me. >> when deadly triangle continues. so i can take on...

Strange. >> one of the stab wounds was in the groin area. >> reporter: what did that tell you? >> its personal. >> reporter: kind of like somebody sending a message? >> yes. >> reporter: maybe a sexual message? >> yes. >> reporter: about that on that crisp december morning as gary and his mother stood shifvering and sobbing, the realization hit. >> i turned around and looked at my mom. i go, you know who did this. i just -- i immediately knew. i just -- it was like, theres no doubt in my mind wh...