On the night of October 8, 2023, 23-year-old Santos David Canizales was shot in Chelsea, Massachusetts. At about 10:23 p.m. multiple 911 calls reported gunfire in the area of Congress Avenue and Shurtleff Street. Canizales was found on the ground with multiple gunshot wounds and transported to Massachusetts General Hospital, where he was pronounced dead.

Dozens of evidence markers were placed at the scene as investigators pursued leads. Authorities identified 28-year-old Edgar Nerys as the person who allegedly shot Canizales. A few days later, police from the State Police, Chelsea Police, and Boston Police arrested Nerys without incident in South Boston when he arrived for a routine probation meeting; he was charged with murder and firearm offenses and was scheduled for arraignment in Chelsea District Court.

What information can anyone offer about that night at Congress Avenue and Shurtleff Street or about Santos’s activities in Chelsea leading up to October 8?