It's possible that Rico dies from a stroke, but he did the classic
'grab-the-left-arm' before falling dead. It doesn't happen all that often
in real life, but in Hollywood that's a scene staple to convey every heart
attack.
A heart attack has one of two signs that are first perceived, a pain in the
left arm because that's the first part of the body to reflect lack of
oxygenation. That's the drop dead sign. Hope you are near the ER door if
this happens.
The other is the crushing feeling on the chest that feels like someone is
sitting on you, or sometimes described as an indigestion feeling that stops
your breathing. That one gives you a chance to get to the hospital fast.
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