A witness says the Oxford Christmas Eve shooting suspect fired on good Samaritans who stopped to help him on side of the road.

There appears to be no connection between the shooter, the victim, or the location where it happened, sheriff Michael Bouchard told FOX 2 on Thursday. Instead, he called the random shooting an “incredibly violent rampage.

After the shooting near Oxford High School, the suspect was quickly arrested. Sheriff Michael Bouchard called it "The worst nightmare on so many levels." The suspect, who used an illegal gun with an extended magazine and fired over thirty rounds, is expected to face "every possible charge," as stated by FOX 2 Detroit .