At 11:50 pm San Marcos Fire and SDSO responded to reports of a motorcycle that had crashed in the area of Borden Road and Fulton Road in San Marcos. The first arriving units found an unresponsive male who was not breathing and did not have a pulse. Bystanders and Sheriff’s deputies began CPR on the male victim in an attempt to save his life. He was transported in critical condition to Palomar Hospital in Escondido. The crash was unwitnessed therefore deputies requested the assistance from the Sheriffs Department’s traffic reconstruction team. See scanner audio at end of clip for additional information.