<text>  Police sought answers Wednesday from a retired correction officer after his dispute with a pair of strangers ended with a fatal shooting. Former officer, Willie Groomes, 69, shot Gilbert Drogheo at about 6:30 p.m. Tuesday at the Borough Hall station in Brooklyn, police said. Drogheos uncle declared Groomes to be a murderer on Wednesday night. Scroll down for video... Killed: Victim Gilbert Drogheo, 32, was killed after a scuffle on the 4 train on Tuesday night . Altercation: Cell phone footage taken by a witness and shared with CBS New York shows an older man approaching a younger man at the subway station and getting into a scuffle before a shot is heard . Terrifying: A blurred figure can be seen near to where the altercation occurred on Tuesday evening . He said that his nephew was a dedicated electrician. He was a great kid, the uncle said. All he did was work, he told the Daily News. Investigators took Groomes into custody on Wednesday but later released him without charges. The shooting spread panic inside a subway station at the height of the evening rush hour when the retired officer, whos 69 years old, boarded a Brooklyn-bound subway train in Manhattan. He was armed with a small Ruger handgun that he was licensed to carry in public. According to witnesses, it appeared that the former officer angered Drogheo, 32, and another man by stepping in between them while they were talking, police said. Emergency: Ambulances carry away an injured man; Gilbert Drogheo was pronounced dead in hospital after he was shot in the torso and the ex-corrections officer was taken away for treatment for a minor injury . The men and the officer argued before they pushed him down into an empty seat on the train, police said. All three men exited the train at the next stop in Brooklyn, where there was a second confrontation on the stations mezzanine level, police said. The retired officer tussled with Drogheo before pulling his weapon and firing one round, which struck the victim in the chest, they said. New York Police Department officers assigned to the station heard the gunshot and quickly detained the shooting suspect. Drogheo, who was from Harlem, died at a hospital. The other man was taken into custody. Television station WCBS broadcast a cellphone video showing a man it identified as the retired officer cornering a smaller man near an exit in the subway station and pushing him. The men are seen struggling before a gunshot is heard and bystanders scatter. Subway passenger Thomas Berry, who witnessed the dispute, told the Daily News the older man had initially tried to avoid trouble. Rush hour shooting: A 32-year-old man was fatally shot by a retired corrections officer during the shooting . Deadly confrontation: Witnesses said the fight began when the older man stepped between two men . The officer told the other two men, Leave me alone. Dont talk to me, Berry said. He was being really calm. But as the dispute grew more heated, the older man flashed a gun, Berry said. Everyone said gun and ran off the train, he said. I was standing there in shock. A cell phone video obtained by CBS New York revealed the moment the officer allegedly shot and fatally wounded Drogheo. The two exchange words and the older man apparently pushes the younger man, the video shows. Just seconds later, a shot is heard. Drogheo was shot in the torso. Other images captured by witnesses and shared with NBC show a man on the ground. He was rushed to Brooklyn Hospital Center, where he was pronounced dead. Fight: The 69-year-old gunman was reportedly heard telling his opponents, dont touch me before the brawl . Tempers flare: The 69-year-old former jail guard got on the crowded train at Bowling Green station and was trying to walk past the duo when some words were exchanged . Witnesses described the chaotic scene after hearing the gunshot ricochet through the station during one of the busiest travel times of the day. Fatima Manuel told CBS she was confused by the sound at first. Like a pow, pow sound, she said. Sounded like a firecracker, but then I said: No, thats not a firecracker. Thats more like a gunshot.. Another subway user, Donny Dushi, added: Its the scariest thing to even hear about. Wherever you are in the city - regardless if its Brooklyn, the city, Queens, just knowing the transportation you take every day, it can happen to anybody. 