I can't read 42 pages on this thread so sorry if this has already been brought up.
Early on I kept reading how people said they thought KC used the knife to cut the duct tape, others said they always used their teeth. This is going to sound weird but duct tape has been in my life from day one, my grandpa used it for everything as did my dad, my kid plays with it......I never needed anything to cut duct tape, you just simply tear it with your hands. Even my kid likes playing with it b/c he can tear it with his hands. Also this "hinkel" or hinkle" brand of duct tape, NEVER have I seen a roll of duct tape with a brand name printed on the outside of it. Leave it to GA to have a specific kind of duct tape---geesh---I'm glad he did though, should lead straight back to kC. I don't think the knife has any importance in this. The heart I just don't understand, other than it may have been a may for KC to send someone a message. jmo