Lawrence Police Detectives located, along with the Essex State Police Unit assigned to the District Attorney Jonathan Blodgett’s Office, arrested a fourth individual, Jorge Diplan age 19 of Lawrence in connection with a recent shooting on Howard St.  One adult male and two juvenile males were arrested on the evening the incident took place.  Following a consent search authorized by Diplan a loaded firearm was located. Both Males were arraigned in Lawrence District Court and the two juveniles were arraigned in Lawrence Juvenile Court.