Tanjim Siam was a 24-year-old clerk from Bangladesh working the evening shift at M&R Convenience Store on Shawmut Avenue in Roxbury when he was shot during an armed robbery just after 9:00 p.m. on July 14, 2020. Surveillance footage shows a man enter, act like a customer, then pull a firearm and demand money and cigarettes. Siam handed over the register contents but was forced into another area and shot at close range. He was taken to Boston Medical Center, placed on life support and remained in a coma; his family traveled from Bangladesh to be with him. He died on August 22, 2020 with his mother at his side.

Authorities arrested 25-year-old Stephon Samuel of Lynn on August 7, 2020. Investigators linked him to the Roxbury shooting with fingerprints found at the store and by matching ballistics from a firearm tied to an attempted armed robbery in Brockton on July 22. After Siam’s death, charges were upgraded to include murder, along with armed robbery with a firearm, armed assault to murder, and unlawful possession of a firearm and ammunition; Samuel was ordered held without bail at his August 24, 2020 arraignment.

Did anyone who knew Siam or who was in the neighborhood that night see something that could help fill gaps in the timeline?