Second suspect in N.J. slayings surrenders


28-year-old turns self in; authorities earlier detained 15-year-old

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Two arrested in N.J. slayings
Aug. 9: This wanted poster was issued for Jose Carranza, who later surrendered. NBC's Pat Dawson reports.
MSNBC



Updated: 36 minutes ago
NEWARK, N.J. - [b]A 15-year-old boy and a man were in custody and facing murder charges Thursday in the execution-style killings of three college students and wounding of another in a school yard shooting.

The teenager was arrested Wednesday night, and the 28-year-old surrendered Thursday, authorities said. Officials earlier said the adult suspect was 31.

“We believe that others were involved in this heinous crime,â€