Authorities say a suspect has been identified.
Meanwhile, the victim's father Adrian Zayas is trying to come to grips with his terrible loss.
"I don't know what to think, I haven't slept or nothing," Zayas said.
16-year-old Jesus Rivera, an 11th grader at Philadelphia Learning Academy, had all his adult life yet ahead of him.
His day began yesterday with the festive celebration of the Puerto Rican Day Parade.
After the parade, revelers traditionally return to the neighborhood around North 5th Street for a huge block party. The parties last long into the night.
But this morning around 12:45 a.m. something went terribly wrong.
Witnesses say a fight broke out at 5th and Cambria streets.
One of the young men involved in the fight returned with a gun.
Police say he randomly fired several dozen shots into the crowd, killing Rivera, an innocent bystander. He was with his 17-year-old sister who watched him die.
Residents say it was a horrible end to what had been a community celebration.
"It's very sad, it's sad in a way, young kids starting to live, it's no words to it," Julio Rosario of Fairhill said.
Rivera was one of five children who live with his parents on Lardner Street in Northeast Philadelphia.
"He was a great kid, he was an honest kid and he was about his business, he was doing what he had to do. He wasn't a bad kid, I understand if you were a bad kid something like that happens to people that's in the streets, but he wasn't that type of person," Zayas said.
Police sources tell Action News the shooter is a young man in his early 20's. A warrant has been issued for his arrest.
Authorities say considering all the bystanders who were out there, it's a surprising no one else was shot.