It's all rumors but far from impossible.
I think the "AAS will kill you and are EVIL" advices are grossly exaggerated
But let's not be in denial here. The depression many experience post cycle, even for a few days, might have driven a few people off past the tipping point. The libido boost might have led a few people down some dangerous sex practices. Etc. And the bad effect on lipid profiles might have provoked an earlier heart attack one would have gotten otherwise.
I was curious too. But it seems for the most part, AAS are pretty well tolerated by most people. And yes, Arnold "abused" them for sure in a medical sense. He's still alive ain't he? Sly too. Nubert died a few days ago but did you watch the video of his workout at age 70?
I'm pretty sure AAS don't add years to our lives. But they do seem to add life to our years.
I compare Nubret and Sly to people I know in their 60s and 70s and I'll take that personally.