I don't think they even got the right person on the video. He (or she?) was just pointing with the finger and saying "pew pew pew". Just a coincidence that the CEO had a heart attack at that moment.
It's likely just the power of suggestion combined with confirmation bias : you see a dude with a jacket and a hood on surveillance camera footage, given the context you assume it's the same guy. But looking at it more closely, they differ in many ways. That theory doesn't have a leg to stand on
Murder isn't fun, but someone sacrificing their future to put fear into the hearts of the rich is good. They've taken away any hope of reform to stuff their faces with more fruits of other people's labor. They're to blame for Trump, both the ones who supported him, and the ones who held back the Democrats from basic social democracy.
They made sure we can't live healthy lives, so we need to make sure they can't either. They took our futures, so we must make sure they can't buy one for themselves. They need to wake up and realize that they're on this sinking ship with us. You need to realize that they'll never help until there are more costs to not helping.