Discription of Events: At about 26th and Quebec driving southbound. I was in the rightmost lane, the driver had been whipping in, and out of traffic, a car turned there was space, I sped up to speed limit, and he came out of nowhere, no indicator, and there was a red light in front of us. I had to slam on my breaks because there was no room for him to merge, and the guy behind my almost rear-ended me.