On the night of July 30, 2023, 27-year-old Moises Ortiz-Santiago was shot near the intersection of Weldon and Quincy Streets in Dorchester. Boston police from the Roxbury district and Boston EMS responded after a report of a person shot just after 11:00 PM. Ortiz-Santiago was taken to a local hospital and died of his injuries.

Investigators developed two suspects in the weeks that followed. Boston police arrested 21-year-old Xavier Pena-Guerrero in Dorchester, and with assistance from the Rhode Island Violent Fugitive Task Force, officers arrested 24-year-old Orlando Soto in Newport, Rhode Island. Murder warrants had been issued out of Roxbury District Court for both men; they were also charged with unlawful possession of a firearm and carrying a loaded firearm.

A Suffolk County grand jury later indicted both men on all charges, and they were being held in custody awaiting their next court appearance. If anyone saw activity near Weldon and Quincy Streets that night or has information about Ortiz-Santiago, please come forward.