Okay, first boeing now openai... Yep, my view of this world being more civilized than portrayed in the movies is disappearing every day. Looks like we're going to start having to take conspiracy movie-like theories seriously now.
"heart attack" gun exists, it's not that improbable that similar tactics can be used. Of course you can just play this into him being crushed by the mistake he did (for his own success in the future).