McNair was 11; the others were 14.
MLK *wanted* Bull Connor to pummel people, and Bull Connor obliged him, which only helped MLK and hurt Bull Connor.
(he did)
You know, months before.
So in seeking to disrupt and punish things that had happened long before and were now settled, the perpetrators bombed kids changing into their choir robes.
you know, like in the segregated South, which won
wait
in that there's both really a lot of it and thankfully much less than there could have been
The bomb went off less than a minute later, evidently because the perpetrators couldn't set a timer.
In Spike Lee's movie FOUR LITTLE GIRLS, the documentary about the church bombing, one interviewee notes in passing that Bob Chambliss was apparently connected to all of them.
The 16th Street Baptist Church was a base for efforts in a nonviolent military campaign. Its enemies launched a violent strike to try to counter it. It didn't work.