Authorities say a large brawl broke out in retaliation for a previous dispute at the Williamsbridge Oval Playground around 7:30 p.m. Tuesday.
Officers found a 17-year-old with stab wounds to his stomach and shoulder and 14-year-old Angel Mendoza with multiple wounds throughout his body.
Mendoza was also hit numerous times with a skateboard.
Both teens were rushed to the hospital, where Mendoza died from his injuries. The 17-year-old is reported to be stable.
Police say multiple teens were fighting for about 15 minutes in the park. Several knives were recovered in the search for evidence.
Detectives believe at least seven teens were involved in the fight.
Police announced the arrests of four teens, including 18-year-old Andrew Ansah, 18-year-old Jordan Williams, a 16-year-old boy and 15-year-old boy. They have all been charged with murder, manslaughter, two counts of gang assault and two counts of criminal possession of a weapon.
Mendoza's father spoke with Eyewitness News and said his son was a good kid who was running with a bad crowd.
He said his son was a quiet kid who didn't bother anyone. He came to the U.S. from the Dominican Republic 10 years ago.
His father said they fought and argued about it many times and he tried taking away his phone when he wasn't going to school.
People who live in the area said they were surprised to hear about the stabbings and described the park as a safe area.
"Usually in this park I don't hear of stabbings like that. So I was surprised," a witness told Eyewitness News. "This is like a family park with a bunch of kids running around-- camps, activities, elderly activities. It's pretty much a safe park."
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