It appears that the primary reason some on the left justify the assassination of Charlie Kirk, and in some cases even glorify it, is that Charlie Kirk was against 'gender affirming care.'

It appears that the primary reason some on... - Wallace L. Garneau | Facebook - Wallace L. Garneau

• Understand that 'gender affirming care' was sprung on the public for one reason and one reason only - to reduce the suicide rates of trans children, which was four time higher than the national average...

It did not hurt that the cost of such care is about two million bucks per kid, and that this is almost pure profit.

• Most parents cannot afford that care, so the AMA pushed for the state to fund it at taxpayer expense...

The suicide rate of those who had 'gender affirming care' is not four times the average, as it is with trans kids who get no treatment at all, but 48 times (the average).
That is not a typo. 

The suicide rate for trans kids is a whopping 12 times higher after 'gender affirming care' than before.

• That is why Charlie Kirk was against it.