I have to high five that theory. Some gumby gang banging yute takes out two cops with a handgun at 100 plus yards. Not in a million years. This smells like an operator with a .22 long rifle to me. I’ll be on pins and needles to see if the ballistics match that kid’s weapon. I’m skeptical.
He was shooting at the cops, not two cops specifically. If you shoot at a large enough group of people at 100 plus yards it is not too surprising you hit at least one of them.
I once shot a Rockchuck at a 100 meters in Colorado mid day, sunny , down hill at over 10,000 ASL. 158 gr. JHP .38 SPL.+P+ Smith model 14 Combat Masterpiece 4 in. barrel. My hunting buddy said WTF was that. I never told him it was a splash hit (round hit rock in front of target) and fragged said varmite. Now I have been around guns all my life and in many strange places around the world and I would have been hard pressed to make the shoot.