Within all the families, there are different views between viewing it or not. But I've talked to most of them, and we all agree this is something that should be private,  said Willingham.

Hasan's execution is set for Dec. 3 at Fort Hood, the site of the shooting. Exact plans for how it will be carried out, beyond the method, haven't been made public.

President Donald Trump initially voiced support for a livestream, saying he  absolutely  approved of it, but has since said he has yet to make a decision.

 There are two thoughts: don't show it and show it. Cause you know, by showing it, maybe other people won't be doing what he did. So, I'll make a decision ultimately. I know what the military would like to do, but I'll make a decision,  the president told reporters over the weekend.

Social media quickly lit up with reactions to the proposed livestream. For Willingham and other families, it's personal.

 People keep saying 'Do this for the families,' and, you know, I want to say, 'You can't speak to what brings us closure,'  Willingham said.