Death Investigations in the area of 61 Devon Street and 815 Morton Street

Boston Police are investigating the deaths of a 6 year-old boy in Dorchester on Thursday and his father in Mattapan today. The cause and manner of the child's death have not yet been determined by the Office of the Chief Medical Examiner and remain under investigation. The adult, identified as 49-year-old Patrick Marcelin of Mattapan, took his own life. Given the facts known at this time, there is no public safety threat associated with these investigations.  

At about 9:30 AM on Thursday, September 4, 2014, Boston Police and Boston EMS responded to 61 Devon Street (District B-2) for a report of a child in cardiac arrest. That child, whose name is not being released at this time because the manner of his death has yet to be determined, was pronounced deceased at the scene.  

Detectives learned that the boy had been staying with his father, Patrick Marcelin. The father was no longer present at the residence and detectives began searching for him in order to interview him in connection with their ongoing death investigation.  

Last night, detectives learned from a family member that Mr. Marcelin had made statements expressing an intention to harm himself and the search for his whereabouts intensified.  

This afternoon, in the course of the investigation, detectives pinpointed Marcelin's location inside an apartment at 815 Morton Street (District B-3). Detectives knocked on the door at about 4:30 PM. Mr. Marcelin answered the door with a kitchen knife in his hand and began to injure himself. Placing themselves in harm's way, detectives made heroic efforts to disarm him, took the knife away, and called for medical assistance. Marcelin was rushed to Boston Medical Center, where he was pronounced deceased as a result of self-inflicted injuries.  

The 6 year-old boy's death remains under investigation by the Office of the Chief Medical Examiner, Boston Police Homicide Unit and Suffolk prosecutors. The death of the child's father by his own hand is being reviewed as a death investigation, which is standard for an unnatural death. As of this hour, however, neither investigation is expected to result in charges against any person.