washington drove his wife to a local park. >> we got into a heated argument. she pulled out her phon and called david. i felt at that point she had lost any feeling for me and she was calling him to come confront me. i was angry. i couldn't believe she was doing this. and just everything just reached a point, you know. it was all very fast. i don't even know if i looked down the sight. i just pointed and pulled. >> according to police, diana was shot seven times. >> it was like a dream, you know. but when that bullet left that gun it became reality. you smelled the gun powder. you see what you have actually done. my mind was racing. i didn't know what to do. got back in the car and just drove. >> diana's body was still in the vehicle when washington drove away. >> kept the gun just for protection. the weapon that was supposed to protect my family, my wife and