then exit his vehicle. he is not attempting to strike anyone. >> reporter: a warning. what happens next is hard to watch. one finally glance toward the oncoming police car, and brown disappears underneath it. it all happened so fast, brown is only on foot for about six seconds. [ bleep ] >> reporter: moments later, the other officer looks under the car with a flash light. then they attempt to get the car off brown. >> we got to get this car off now. >> reporter: by the time fire rescue crews arrive to lift the car, the 38-year-old father of two is dead. crystal brown is marlon's ex-wife. >> you look at that video, you don't see a swerve. you don't see -- you don't even hear, oh, my god, as you impact. >> reporter: the medical examiner said that brown died from mechanical asphyxia.