On the evening of September 20, 2016, 21-year-old Jonathan Cardoso was shot near 55 Downer Avenue in Dorchester. He was taken to Boston Medical Center and pronounced dead; the Office of the Chief Medical Examiner ruled the death a homicide. Jonathan was the fourteenth person killed in Dorchester that year and is survived by his mother, an older sister, and a younger sister who was a student at the Mather School. Friends and family set up an online memorial fund to cover funeral costs and fly relatives in from Cape Verde.

In the days after the shooting the Boston Police Department’s Youth Violence Strike Force increased patrols. On September 29 officers arrested a 21-year-old Dorchester man, Pedro Daveiga, outside the same address and recovered a loaded 9mm; those weapons charges were not directly tied to Cardoso’s murder. Investigators later sought a blue Honda Accord (2003–2005) for investigative purposes. No arrest has been announced in the homicide.

Did anyone in the Dorchester area see that blue Honda Accord or have information about what happened on September 20?