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Forum Posts for John Dennis Holmes III:
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On July 16, 2024, deputies responded to a reported shooting in the 300 block of Raypine Drive in Spring, Texas. They found 19-year-old John Dennis Holmes III near a black 2017 Nissan Rogue with multiple gunshot wounds; Holmes was pronounced dead at the scene.

Initial investigation led to the arrest of 20-year-old Mark Anthony Crooms Jr., a friend of the victim, on July 19 after authorities said his fingerprints were found in Holmes’ vehicle. Crooms produced surveillance footage from his Humble, Texas, home showing him there around 6:27 PM, minutes before the shooting roughly 17 miles away; he was released and charges dropped. Detectives then focused on 18-year-old Isaiah Mayham after finding Instagram messages arranging a meeting at the shooting location and surveillance video of a person matching Mayham’s description fleeing while carrying two firearms, one with a red magazine. Shell casings from the crime scene matched casings found near Mayham’s apartment, and ankle monitor GPS placed him at the scene. Mayham was arrested on August 14, 2024, on a murder charge; he had been out on bond on an unrelated 2023 Harris County murder charge at the time of the shooting.

Does anyone have information about Holmes, the arranged meeting, or the people involved that could help clarify what happened that night?