Gibbs was shot in Fayetteville on June 7. He was inside his Danish Drive home when a bullet from a drive-by shooting tore through the walls and hit him.
Gibbs died three days later at UNC Hospitals in Chapel Hill.
Nearly three months after the shooting, the Fayetteville Police Department announced a break in the case. Homicide detective Stephanie Berrios said another department had found a gun and testing confirmed it was the one used to kill Gibbs.
In addition, the grey Chrysler 200 police believe was used in the drive-by shooting had also been found. That Chrysler was found outside of Fayetteville on private property. Nobody was inside it, but there was a bullet hole in the front passenger side door.
Investigators said that bullet hole was not related to the drive-by shooting that killed Gibbs. Because of that, they are asking anyone with information about a grey Chrysler 200 that may have been involved in another shooting to come forward with information.
The Fayetteville Police Department (FPD) confirmed it does have possible suspects identified in the investigation, but at this time investigators did not wish to release their identities.
WATCH | FPD Full News Conference
Detectives share update 3 months after killing of Zion Gibbs
Remembering Zion Gibbs
Zion's mother Myra Gibbs said he was killed two days after her twins graduated high school. She's pleading with more people to come forward with information
"It's beyond words how shattered my heart is and there are a lot of whys. I wouldn't wish this on nobody," Myra said. "We still need answers and I want to put out to the people if you know something, say something this is a 7-year-old little boy, an innocent victim...just in the comfort of his own home playing a video game and eating cheese fries."
Zion was supposed to start summer camp that following Monday in June.
"He was one of those kids: Mommy are you okay? At night, every single night he'd say 'I love you guys' two or three times in one night. He was just a loving kid."
Myra said she's been working closely with Fayetteville Police as the investigation has gone on. She is a 9-1-1 operator for Cumberland County.
"I said you know I've been doing this for four years. You have to understand the calls I have taken and never thought I'd have that emergency," she said. "I'm hoping that that next call I get will be an arrest."
Gibbs was a student at Benjamin Martin Elementary School. The school released the following statement about his death:
"We are deeply saddened by the tragic loss of Zion Gibbs, a beloved student at Benjamin Martin Elementary School. Our hearts go out to his family, friends, and everyone in our school community during this incredibly difficult time."