Police arrest man in west Baltimore shooting after ShotSpotter alert
Police arrested Michael Garrison in Windsor Mill days after a Harlem Park ShotSpotter alert led officers to a 53-year-old man with gunshot wounds.
Baltimore police have arrested Michael Garrison, 31, in a west Baltimore shooting that began with a ShotSpotter alert on the 500 block of North Monroe Street and ended with an arrest in Windsor Mill nearly five days later. Officers found a 53-year-old man suffering from apparent gunshot wounds at about 11:50 p.m. on June 7, and Garrison now faces attempted first-degree murder and handgun violations.
The arrest gives Harlem Park neighbors a clearer picture of how the case moved from street violence to follow-up work by detectives. Police said the alert system helped send officers to the scene, and investigators later asked anyone with information to call 410-393-2477. Garrison was arrested on June 12 without incident and taken to the Central Booking Intake Facility, where the case will move through the court process.
Police have not said whether the shooting was targeted or tied to a broader pattern, and they have not publicly described a motive or relationship between Garrison and the victim. That silence leaves one of the neighborhood’s central questions unanswered even as the charges mark a concrete step in a case that had been open since early June.
Harlem Park has long carried the weight of repeat gun violence, even as city planning materials describe it as one of West Baltimore’s historic and architecturally attractive neighborhoods. A 2024 double shooting in the neighborhood later led to a life-plus-35-years sentence for Antonio King in 2025, a reminder that violence on the block does not end when police leave the scene. For residents near North Monroe Street, each new arrest is measured not only by the charges filed, but by whether it changes the cycle of fear that follows shots fired.
The case also lands in a city still tracking a high volume of shootings. WMAR-2 News reported Baltimore ended 2025 with 133 homicides, down 61 from 2024, and that May 2026 brought eight homicides and 32 non-fatal shootings. In that context, the Harlem Park arrest is more than one case file. It is another test of whether Baltimore’s mix of gunshot detection, street-level policing and investigative follow-through can turn a late-night alert into accountability before another block is pushed deeper into the city’s violence tally.
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