language. i was very afraid. this guy is a big guy. i definitely didn't want any physical confrontation so i began to get back from him. >> but it's too late. parker, enraged, jumps into his car and heads straight for professor hill's yard. >> with that speed, doing the doughnuts and 360s in the yard, i said i need to get out of here because he could very well come over and just crush me where i'm standing. >> professor hill runs for his life. he takes off down the street. but to his horror, parker is right on his heels. >> he came out of the 360, came out of the driveway, and began to follow and pursue me to run me down. >> marvis is just leaving his mother-in-law's house when he witnesses the terrifying scene. >> he was running from the car and he got between the tree and the sidewalk and the car was coming behind him and i said don't run over him.