CHICAGO (CBS) -- Two families and groups of friends, two tragedies, but one goal. The families of Blair Holt -- shot dead on a CTA bus six years ago at age 16 -- and 15 year old Hadiya Pendleton -- murdered not six months ago -- held respective birthday celebrations for their lost loved ones.
Both were parties with a purpose. Both families are passionate about fighting the gun violence that killed their kids.
Hadiya's father, Anthony Pendleton, said it's not acceptable to do nothing; then, they would become victims.
Blair's father, Ronald Holt said one focus of the 'Blair Holt Peace Alliance' is to fight for common-sense gun laws, like universal background checks, and to support others who do the same.
Hadiya's parents also have a foundation, and her friends recently started, 'Project Orange Tree', aimed at fighting street violence and raising awareness about how it impacts young people.
Hadiya's mother, Cleo Cowley-Pendleton, said members of the group wear orange buttons, the color hunters wear.
"They use the button, and the color orange as a message to say don't shoot me," she said.
Newly-elected Congresswoman Robin Kelly (D-IL) stopped by the Holts' gathering to lend her support. An advocate of some gun control measures, Kelly said she told them, "I will continue to be a voice, but I cannot be a voice by myself."
Two people have been charged in connection with Pendleton's murder.
Michael Pace, the man convicted of killing Holt, will spend the rest of his life in prison.
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