Jersey city police are investigating an incident in which a 40-year-old Woodlawn Avenue man was hit by a bb gun pellet while walking on MLK Drive near Rose Avenue just after 1 a.m. Friday. The victim said a group of juveniles shouted his name and then he was struck with the bb pellets in his arm, sustaining a non life-threatening injury. He was transported to the JCMC-Barnabas Health for treatment.