Guns don't kill people. The little holes that the bullets make kill people. Knives, on the other hand, kill people. The interesting thing about your murder weapon of choice is how personal you want to get with your intended victim.
You can stand several yards away from someone and shoot him. It's very impersonal, and you can even shoot multiple times if you like. But to stab someone, you need to be within arm's reach, potentially looking this person directly in the eye as you plunge the knife into his body. THAT'S personal.
Why the morbid thoughts? A patient I took to the OR last night was stabbed 20 times. TWENTY TIMES. Think about that as you're looking over the list of what was stabbed:
Chest 3 times
Back ten times
Fortunately, none of the injuries were life-threatening. I explored his abdomen and stopped the bleeding, put a tube in his left chest to re-expand his collapsed lung, and tediously repaired all 20 stab wounds (the one on his scalp alone was about 25 cm or 10 inches long).
Now I've been righteously pissed off before. But how much rage must you have inside you, and how much anger must you have towards this person to stab him this many times in all these places?