I got into a car accident this morning on my way to school. It was at a small stoplight intersection. I've never been in an accident before in the 14 years I've been driving, so it really stinks. My car is probably totaled since the whole front is smashed. I stopped at the intersection for a while. I swear my light turned green, and I just went. I didn't look both ways though like I usually do, and I hit the back of a business utility truck. He told the police I went through the red light and I said my light was green. Now I'm second guessing myself, and I don't know who's right. I don't remember at all. I never went through a red light before, so I can't believe I'd do that....He said he had a witness who left--maybe he did, maybe he didn't--I don't know. I stayed in my car and waited for the police. I want to take responsibility if it was my fault, but I don't want to admit to something that I'm not sure about either. His insurance company will probably call me later today? What do I say?