Well, that made the prosecutor's job a lot easier, didn't it?

The 15-year-old charged with fatally stabbing Barnard student Tessa Majors during a park mugging was caught on a wiretap confessing to his jailed dad, sources told The Post Tuesday — as it emerged that the youngster has been indicted in yet another vicious robbery. 

Before he was arrested in the Dec. 11, 2019, slaying, Rashaun Weaver allegedly spilled his guts to his father, Clifford Weaver, in a conversation that was picked up on a recorded prison phone line at the Mohawk Correctional Facility, where the elder Weaver was being held on a parole violation. 

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-Steve