The teenager charged with fatally stabbing another teen boy on a Brooklyn street corner stayed mum Wednesday as he was walked from an area police station wearing handcuffs and the same tux he had on when he turned himself in the day before.

David Lopez, 17, said nothing as he was escorted by two detectives out of the 70th Precinct station house and placed in the back of an unmarked police vehicle.

Cops say Lopez plunged a knife into the chest of 17-year-old Rohan Burke Monday at 4 p.m. at the corner of East 17th Street and Avenue M in Midwood.

He gave himself up to police Tuesday clad in a dapper gray suit with black trim.

Lopez was charged with murder and criminal possession of a weapon in the slaying.

The suspect’s mother, 38-year-old Barbara Galloza, was charged with hindering prosecution and tampering with physical evidence for allegedly hiding the murder weapon, which police have not recovered.