>> i came across sharlene late at night, and she was sleeping in her car.ht there on the car window door, and i had woken her up and instigated and escalated. as soon as she opened the door, i was like where the hell is my money? you stupid -- you know, and she went on the defensive and started arguing back. i just got more pissed off. over a petty small amount of money. and at that point in my life, i was a person who did not care about anybody else. i was only worried about me. i was only worried about tweaking my addiction and i was walking around pissed off at the world all the time. >> how -- how did she die? did she fight back? did she ask you to stop? did she ask for mercy? >> i told myself when this started that whatever you needed. this is what you need. ♪ i pulled out my knife and i stabbed her with -- with everything i had, with years of built-up anger and hatred and everything else. it was violent and brutal. she collapsed almost instantly. she struggled some. she suffered some. and i'm doing this because i told myself that i would do this. she