On December 5, 2018, 17-year-old Karlonzo Taylor was shot inside an apartment building on Park Street in Hartford and later died at a local hospital. He had been with friends on the third floor when a gunman opened fire; another teenager was wounded but survived. Investigators concluded the shooting was retaliatory: the suspect returned to the building to avenge an alleged robbery there months earlier in August 2018. Family, friends, and others said Taylor was not involved in that earlier robbery.

Karlo nzo was described as a peaceful, smart young man who worked at the Hartford Public Library and hoped to become a veterinarian. The Hartford Police identified 24-year-old William Moore as the suspect; he was arrested the day after the shooting in Bristol and charged with murder and first-degree assault. Moore’s mental health, including a history of paranoid schizophrenia, was mentioned in court documents. Does anyone who knew Karlonzo or was in that building that day have information that could help clarify what happened?