An arrest affidavit reveals Armont and Moss were street racing at the time of the crash. The suspect in a McKinney street racing crash was going well over 100 miles per hour at the time his car hit and killed two elderly residents last month. Dig deeper:An arrest affidavit confirms that street racing was the cause of the fatal accident. The affidavit states Armont began street racing Moss, who was driving a black Tesla, after pulling up next to him at a red light on Custer Road. Community mourns loss of William and Sandra LazarusWilliam and Sandra LazarusWilliam and Sandra Lazarus were active parts of the community.