Parents whose sons had CTE push for legislation to protect young athletes

When you watch an NFL game you may notice some players wearing helmets with add on Guardian Caps and other protections to prevent concussions.

But new research proves repetitive head impacts are the root cause of CTE and long-term brain damage.

Now some parents, who lost their sons to CTE, are on a mission to make football safer for all athletes.

That boy was so loved by everybody that touched him. I just miss him. I miss him so much, said Bruce Parkman.

Parkman lost his son, Mac, to suicide at just 17-years-old. He had no idea of Macs mental illness until his son posted a video right before he took his life.

He said that he'd been suffering from schizophrenia for two years, depression for three. And that boy hid that like nobody's business, explained Parkman.

After his passing, Macs