Yes, if those people are planning to set your house on fire while your family is inside.
He was on top of his APARTMENT BUILDING, THAT HE OWNED. There were people inside those apartments.
He had every right to stand on the roof with a rifle during the riots.
How does anyone know he planned to 'mow people down?' That was 25 years ago. If he had plans to mow people down at that time, what took him 25 years to get it started?
I think we should be accurate and realistic when discussing a perps history. We cannot look at every action they take in life and describe it as murderous. Let's be realistic.