Does America need the law of the jungle - the second amenemnt to the US Constitution?

And then this], about the shooter:

THE “deranged" killer who killed 26 churchgoers in Texas was militant atheist who ranted on Facebook about “stupid" religious people. ... Classmate Nina Rosa Nava write on Facebook that the mass murderer used to rant on the social network about his atheist beliefs. She said: “He was always talking about how people who believe in God were stupid and trying to preach his atheism." Fellow user Christopher Leo Longoria replied: “I removed him off FB for those same reasons! He was being super nagtive (sic) all the timd (sic)." Another Facebook friend of the killer added: “He was weird but never that damn weird, always posting his atheist sh** like Nina wrote, but damn he always posted pics of him and his baby - crazy." ... He said: “'He was the first atheist I met. He went Air Force after high school, got discharged but I don't know why."
An atheist! Sigh...