Was pulling up to a red light, heard the crash behind me. Locked the video, pulled over and downloaded. Circled back around to see if they wanted to see it and have it, ended up sending it to the cop and the person in the truck. White car was an older gentleman, car had significant damage from this and from previous accidents. Cops said I didn’t have to stick around so I didn’t. Everyone was okay and grateful, first time being able to use the dash cam. No idea who’s at fault honestly.