Authorities are investigating a crash that killed three people in Kankakee. The accident happened early yesterday in the 900 block of South Cobb Boulevard. Investigators say a GMC Yukon left the roadway and hit a tree. After the initial impact, the SUV caught fire and was fully engulfed in flames. All three people in the vehicle died. They have been identified as 48-year-old Philip Birdsong, 45-year-old Kiyantis Riley and 41-year-old Jeffrey Clark.