Police say speed may have been a factor in Friday's fatal accident at the intersection of South Cooper Street and Eden Road.

Will Power and Felix Rosenqvist will start at the rear of the pack on Saturday.

One of the involved vehicles was allegedly "racing another vehicle" before the deadly crash, Tucson police said.

Add Yahoo as a preferred source to see more of our stories on Google. A race car racer was killed when the skid loader he was operating slid into a drainage ditch, and became submerged. The freak ...