LOUISVILLE, Ky. (WDRB) -- Days after graduating high school in Louisville, a college-bound teen has been gunned down in the middle of the night.

Today we heard reaction from former classmates and learned what the victim was doing with his friends the night he was killed.

Students expressed shock and sadness outside Iroquois High School Wednesday following the murder of Derrick Cargill, a recent graduate. 

"Everybody just crying and trying to figure out who it is and all that," said Allen Newcomb, a former classmate of Cargill's. "I just seen him, like, last week." 

The 18-year-old is the fourth teen murdered in Louisville in less than two weeks. Crime tape and flashing lights marked the place where Cargill was shot in the head around 1 a.m. Tuesday on Colorado Avenue, near Lincoln Avenue.

He died at the hospital.

"The parents described that he was going to go with some of his friends to continue celebrations after graduating high school," said community activist Christopher 2X.

No arrests have been made and there are no suspects, according to police. 

"I heard it was the wrong person, that it was supposed to be hit," said Allen.

The surge in young murder victims and young hands on the trigger is concerning to Cargill's former classmates. 

"It's just sad," said one student who wanted to remain anonymous. "It's, like, too close because we all young, and when I hear or think about stuff like that, what if something happens to someone I'm close to, or myself?"

"Hatred, that's all I can say," Allen said. "That's all it is -- for nothing!"

Family members say Cargill loved basketball, played at Iroquois High School and planned to attend IU Southeast this fall to study sports medicine. Christopher 2X sat with relatives at the hospital as they made the painful decision to donate his organs. 

He says relatives are also wondering if Cargill knew his killer.

"They're convinced somebody who was around him knows -- or probably knows -- one, two or several individuals who might have took his life," he said.

Anyone with information on the case is asked to call the Metro Police tipline at 574-LMPD.

Copyright 2016 by WDRB News. All rights reserved.