JACKSONVILLE, Fla. -

The search for a killer intensifies as a Westside family tries to come to terms with the loss of not one, but two of their sons.

Police said what started as a conversation lead to gunfire outside a Golden Corral restaurant on Normandy Boulevard Sunday night. It happened just after 9 p.m. in the parking lot of the Westside business.

Matthew Bohannan, 19, and Andrew Bohannon, 24, were killed after police said a man started shooting at their car.

Police said they have surveillance video showing a conversation between two separate cars, and believe the Bohannons knew the suspect.

Channel 4's Adrienne Moore spoke to the parents of Matthew and Andrew. Bruce and Stephanie Bohannon are inconsolable. 

The news came on Bruce's birthday Sunday night, and Monday is Stephanie's birthday.

Bruce and Stephanie said their sons had incredibly big hearts. Matthew wanted to travel and see the world, and Andrew was focused on helping the homeless.

But those dreams came to a violent end in the parking lot of the Golden Corral. The Bohannons' parents are hoping the public can help catch the killer.

"I don't know who could do this to them," said Stephanie. "Who could just shoot them and kill my babies? They never got to live."

The distraught and emotionally drained mother shook as she talked about life without her two sons.

"All of their brothers and sisters, they don't have their big brothers now," said Stephanie.

Police said Matthew and Andrew were not even a mile away from the Westside home they shared together when they were shot by a man in another car.

Investigators said surveillance cameras show some type of conversation between the Bohannons and the suspect in their respective cars, but don't know what made it escalate to violence.

"We just want these individuals caught and brought to justice so we can have some kind of closure on this," said Bruce.

Their father didn't want to show his face, but said this senseless crime has taught him to squeeze his remaining five children a little closer.

"Love your children each and every day. Love them like you'll never see them again because you never know when something like this will happen," said Bruce.

Family members said Matthew loved to dance, had a passion for wrestling and was enjoying his job as a cashier and stocker at Winn-Dixie.

They said Andrew was an extremely hard worker and a family man who balanced his job at Copelands with charity work.

While investigators believe the Bohannon brothers knew the person who shot them, their family is pushing for the vehicle and suspect description be made public so they can get justice for their sons.

"I don't want another mother to ever have to go through this," said Stephanie. "Find who did this to my boys! Anyone who knows anything, please, please find them."

The Bohannon family is in the process of setting up a fund in Matthew and Andrew's name to help pay for funeral expenses. Bruce recently lost his job and said he's not sure how they're going to pay for services.

Anyone with any information that can help is urged to call Crime Stoppers at 1-866-845-TIPS.