12th susp in Lesandro slay back in Bx.

A 12th suspect in last month's shocking machete murder of an innocent Bronx teenager is back in New York to face murder charges in the mistaken-identity killing.

Luis Cabrera Santos, 25, was busted in Connecticut last week when a state trooper's license plate reader showed Santos' car was connected to the slaying. He agreed to extradition and was taken back to the Bronx in handcuffs Tuesday night.

Cabrera Santos was one of a dozen alleged Trinitarios gang members arrested in the June 20 killing of Lesandro (Junior) Guzman Feliz, 15, on E. 183rd St. in Belmont on June 20.

A law enforcement source said that Santos wasn't one of the stabbers, but is believed to be part of the group that chased him before the killing. Police have said he's likely the final suspect to be arrested in the murder.