The son of longtime Boston Red Sox broadcaster Jerry Remy is being held without bail after pleading not guilty to a murder charge in his girlfriend's death.

Jared Remy was arraigned Friday in Waltham Mass. He is accused of fatally stabbing 27-year-old Jennifer Martel on Thursday a day after he was released from custody in an assault case against her.

Middlesex District Attorney Marian Ryan says police went to a Waltham apartment complex at about 10 p.m. Thursday and found Martel outside with multiple stab wounds.