Tiarah Shanice Poyau, 22, a St. John’s University student, was shot in the face and killed during the pre-dawn J’Ouvert celebration in Brooklyn on September 5, 2016. She was with three friends when a 20-year-old man, later identified as Reginald Moise, began grinding on her; when she told him to get off, he shot her at close range.

Four hours after the shooting, police arrested Moise on a DWI after he crashed into three cars. He had told friends he thought he had shot someone, and investigators recovered a 9mm handgun at his girlfriend’s apartment. Ballistics matched a casing from that apartment to the scene; Moise was charged with second-degree murder, criminal possession of a weapon, and reckless endangerment.

At trial the defense said Moise was so intoxicated he didn’t know the gun was loaded and could not remember shooting. Moise was convicted of criminally negligent homicide and criminal possession of a weapon; the judge sentenced him to 17 1/3 years, the maximum for those convictions. Poyau was remembered as a stellar person pursuing a master’s degree and about to start a new job as an accountant.

Did anyone who attended that year’s J’Ouvert see or hear anything that could help clarify what happened that morning?