A backyard gathering on Great Neck Road in Amityville on the night of July 17–18, 2021 ended in homicide. Maresse Stevenson, a 41-year-old Black man, was attending the party when a man identified as 29-year-old Paulin Cerisier from Pennsylvania arrived at about 2:50 a.m., walked into the backyard, approached Stevenson and shot him in the left shoulder. Stevenson was pronounced dead at the scene shortly after the shooting.

Cerisier fled the location and investigators from the Suffolk County Police Department Homicide Squad pursued the case. Detectives located him in a Washington County, Pennsylvania hotel and arrested him on July 15, 2024; he was charged with second-degree murder and two counts of second-degree criminal possession of a weapon and arraigned August 7, 2024. Trial evidence described Cerisier driving to the party, approaching Stevenson masked and wearing sunglasses, and an on-scene video confession that Cerisier later recanted.

If anyone who attended that Amityville gathering or who saw activity on Great Neck Road before dawn on July 18, 2021 has information, please share it with the Suffolk County Homicide Squad.