Boy Found Happiness When Best Friend’s Family Adopted Him at 17. He Died a Year Later While Helping His Girlfriend (Exclusive)

Heather Hearon still has the handwritten letter from her late son Robert Knight, whom she adopted last year, when he was 17.

“You made my life so much better,” Knight wrote to Heather, whom he affectionately called ‘Ma Dukes.’ “You just don’t realize the burden you took off me. You will always be my mom and forever will be my mother.”

Before he found happiness with Heather’s family, Robert — who died in a June 3 traffic accident in Georgia —had lived in a difficult home situation with his previous legal guardians, according to Heather.

“He never had the love of a mother,” Hearon,  37, of Lee County, Ga., tells PEOPLE. “So when I loved him like one of my own, he gave me that role. It was such a blessing for me to be able to be that for him.”

About five years ago, Robert became best friends with Cayden Nelms when they attended Lee County Middle School East.

“My first memory of him was when we went to a Coca-Cola factory for a field trip,” says Cayden, 16. “I wouldn’t leave his side. I would always follow him around because he was the funniest guy there and I wanted to be his friend.”

Cayden remembers Robert as a popular kid at school who had many friends.

“He was kind of quiet,” he says. “But if you got to know him, he was the funniest person you met. I mean, he would brighten up your day just by being there.”

Robert was a familiar presence at Heather and Cayden’s home, frequently sleeping over on weekends. He was especially a favorite with Heather’s younger children, son Landon, 8, and daughter Kimber, 6.

“He loved them so much,” Heather says. “He spent time with them. He colored with them. He drew them pictures.”

Eventually, he opened up to Cayden and Heather about his difficult upbringing.

According to Heather, Robert was born in Huntsville, Ala., and never met his biological father, who was deported to Mexico when he was 4.

Robert, his birth mother and two siblings were all living together, but when she was unable to care for them, they were first placed with Robert’s grandfather, before the three siblings went to live with another couple, who served as their most recent guardians.

 “We knew he was having a hard time,” Heather says. “The people that he was living with wouldn’t treat him right.”

Cayden would put food and snacks in Robert’s knapsack so he would have something to eat when he returned home, says Heather, adding that he would also share his school lunch with Robert when his friend didn’t have enough money.

In May of last year, according to Heather and Cayden, Robert’s guardians kicked him and his younger sibling out of their home. Their older brother had already left the home when he turned 18.

Robert ended up staying with Cayden’s family, while his sister lived with her best friend’s family.

“He called me [after] he got kicked out,” Cayden recalls. “I asked my mom if he could come in and live with us permanently and she accepted him.”

From the moment Robert moved in with them, Heather knew she wanted to bring him into her family, which also included her fiancé, who lived in a separate house at the time. In June 2025, Robert’s former guardians dissolved their guardianship over Robert, and Heather signed the papers as his new parental guardian. The adoption was finalized about a month later.

“I never had an older brother,” says Cayden who described having Robert as his sibling as the best moment of his life. “So he was that brother for me that I always wanted.”

Robert found happiness with his new family. Among the things Heather did for him was enrolling him in school, helping him take his driver’s test to obtain his license, and taking him to the hospital when he suffered a fractured ankle.

For his 18th birthday, Heather and her took him to the beach, and he purchased his first-ever lottery scratch off.

“We got to celebrate one good Christmas with him, a stocking with his name on it and an ornament  with his face for the tree,” Heather says.

On the evening of June 3, Robert left the home to help his girlfriend and her family with their move. “That’s how Rob was. He always wanted to help everybody. Even if it meant him not doing what he needed to be doing, he was going to go help somebody else,” Heather says.

According to a statement and crash report provided to PEOPLE from the Georgia State Police, a trooper responded to a two-vehicle incident in Terrell County. Authorities later determined that Robert, driving a car traveling north on Callis Road approaching its intersection with State Route 32, failed to yield to a stop sign.