Cameron Sterling and mother _lowres

Cameron Sterling, the 15-year-old son of Alton Sterling, with his mother Quinyetta McMillion after a news conference Wednesday, July 13, 2016.

Quinyetta McMillon, the mother of Alton Sterling's son Cameron, said that the family of the man who was shot and killed by Baton Rouge police two weeks ago is "disgusted" by the deadly attack on law enforcement that rocked Baton Rouge on Sunday morning.

"My family is heartbroken for the officers and their families. We are praying for them, city leadership and the Baton Rouge community. As my son Cameron and I have said from the beginning, all we want is peace. We reject violence of any kind directed at members of law enforcement or citizens. My hope is that one day soon we can come together and find solutions to the very important issues facing our nation rather than continuing to hurt one another," McMillon said in a statement released by her attorneys Sunday evening.

The fatal shooting of Sterling, 37, set off a series of protests and other demonstrations across the state. The U.S. Department of Justice and the FBI are investigating his death.

Authorities have not linked Sterling's death to Sunday's shooting that left two Baton Rouge police officers and one East Baton Rouge sheriffs deputy dead and three other officers injured. Citing the early stage of the investigation, officials have offered no motive.

Cameron Sterling and McMillon have emerged as key voices in the call for unity and peace since Sterling was gunned down in a convenience store parking lot on July 5.

Cameron Sterling, 15, took part in a town hall with President Barack Obama on Thursday, and was given the first opportunity to ask the president a question.

"I ask for your help to unite all of the races of this world," Cameron Sterling said.

On Wednesday, Cameron Sterling made a public plea for peace.

"Protest in peace. Not guns, not drugs, not alcohol, not violence," he said. "Everyone needs to protest in the right way, with peace. No violence. None whatsoever."

Sterling's aunt, Veda Washington-Abusaleh, also condemned the officer shootings and made an emotional plea in a television interview for peace and an end to violence.

"We don't want no more blood shed," she said in the video posted to CNN. "Stop this killing. Stop this killing."

Follow Elizabeth Crisp on Twitter, @elizabethcrisp.