The victim's mother is urging her son's best friend to turn himself in.
"You just need to turn yourself in because only you and Carlos know what exactly happened and obviously you know Carlos is not here to come up and tell us what exactly happened," said Aida Portillo, the victim's mother.
According to investigators, the shooting happened at about 8 p.m. Monday. Carlos Vela, 17, and his best friend, 17-year old James Kempski Jr., were at Kempski's Bellflower home.
The two were allegedly playing with a loaded gun when it went off, shooting Vela in the head. Kempski reportedly put Carlos's body in a trash bin, then panicking, called his father.
Aida Portillo says her son and Kempski were very close friends.
"My son and him were very close," said Portillo. "You know, for years. He slept at my house. I fed him. I gave him love, you know, just like he was my own."
Carlos's friend James hasn't been seen since the shooting. Portillo wants James to know he'll be forgiven. She just wants him to turn himself in.
"I have a huge heart and this heart is by the love that I get from my family and it's allowing me, you know, to go ahead and forgive," said Portillo. "I want to tell James that, you know, that he will be forgiven."
Carlos Vela's funeral is Tuesday.