Linda Burke-Monerville has even tried sending her children to Nigeria to escape the violence.
She is now seeking justice for sons Trevor, 26, Joseph, 19, and David, 38, who were killed in separate attacks in London.
David was the latest to be killed in Barnet last month while Joseph was murdered six years ago in a case of mistaken identity.
The eldest of three, Trevor, was stabbed to death in 1994 and none of the killers so far have been caught.
“I have to hold onto what is left of my family”
Parents Linda and John told how they had sent their children abroad to keep them out of trouble.
Just six months after Joseph returned with his twin brother Jonathan, he was shot in the head.
John told Good Morning Britain: “The second set of twins, I recall one day they came home saying they got in a fight at school and a young lad who was a spectator at the time of the fight offered one of them a knife and asked him to use it.
“They came home and told us that story. The next day we talked about it and decided to repeat what we did with the first set (by sending them to Nigeria).”
He added: “I have to hold onto what is left of my family.”
Linda said: “We don’t want them to be counted in the statistics of gun culture, we just want them to have a good education.
“I just want justice.
“Justice has not been done for Joseph, justice has not been done for Trevor.”
Three men have reportedly been charged with aggravated burglary over David’s death.
A trial into the 2013 shooting of Joseph collapsed.
The country has suffered a knife crime epidemic with fatal stabbings at their highest level since WWll.
In May it was revealed that five young people are attacked with knives every day in London.