A Brighton Municipal Court jury on Tuesday convicted Nikloas Papadopoulos of negligent operation - a misdemeanor - for a Sept. 6, 2013 crash that paralyzed a Dorchester man in the pickup he smashed into and put one of his own passengers into a wheelchair with a traumatic brain injury, the Suffolk County District Attorney's office reports.

Papadopoulos faces up to two years in jail when he is sentenced Feb. 3.

The jury took less than a day to accept prosecutors arguments that Papadopoulos was cruising up the Arborway at more than 20 m.p.h. over the speed limit on Sept. 6, 2013, when he crossed the center line and crashed into a pickup heading the opposite way driven by Kevin Cellucci, 33, a father of three.

Cellucci's passenger, a 34-year-old Quincy man, suffered less serious injuries.

One of Papadopoulos' 14-year-old passengers suffered a traumatic brain injury after being ejected from the vehicle and now uses a wheelchair; the other 14-year-old passenger was seriously injured. Neither was wearing a seat belt. A 15-year-old passenger suffered less serious injuries.