Adams Street Murder Case: Waltham Teen Held On $500K Bail

WALTHAM, MA ― Derrick Lopez, 18, of Waltham was held on $500,000 bail Tuesday in Waltham District Court in connection with the suspected murder of Christin Tobin, 36, of the unit block of Adams Street last month.

Lopez was charged with murder and held without bail at his arraignment on July 17.

On Saturday, July 15, at approximately 2:40 a.m., Waltham Police responded to a report of an assault on a woman. When police arrived, they found Tobin, dead. The Office of the Chief Medical Examiner later ruled the cause of death to be sharp force trauma to the head, neck, and upper torso.

About 2:39 a.m. on July 15, two men flagged down a police cruiser in front of the Adams Street address then decided they didn't have anything to say. It took a minute before one of the men told police that his cousin, later identified as Lopez, was inside the rooming house with a woman who had locked him inside. The cousin said something about three cell phones, but before the officer had the chance to figure out what he meant, the cousin's phone rang.

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Officer Aucoin said in his police report he heard the man say into the phone, "What happened? You did what? You stabbed her?"

Catch up on this story with these related links:

Suspicious Death, Possible Murder On Adams

Waltham Teen Charged For Murder On Adams Street

Woman In Waltham Murder Identified

Waltham Teen Told Police He Was Held Hostage Before Stabbing