Not guilty. You can only murder human beings. Brian Robert Thompson willingly relinquished his humanity a long time ago. What Luigi did was more akin to using bleach to treat mold in the bathroom. Killing a living thing? Yes. Murder? Certainly not.
Trek is my usual background show but I’m currently on a SG1 rewatch. It’s funny to see so many people from Trek show up in various roles, I think Hammond of Texas would fit perfectly as a statue in front of Starfleet Academy as a model of humanity’s ideals regarding exploration of the stars. Given access to advanced healing technology, both O’Neill and O’Brien would be busting heads to ensure everyone got a fair shake, they’d both despise a CEO like this one
My theory is that once you have a role as a main character in Star Trek, you're pretty much stuck in sci fi. The exception to this is if you were already a well established actor prior to Trek. So Patrick Stewart could go back to high theatre, but Colm Meaney ended up mugging Atlantis for a little C4.
They've charged Brian Thompson with terrorism for what he did - or at least caused - to tens of thousands of people each year?
Finally they start to make sense!