They were apparently playing “Texas Poker” in which you have some cards in your hand and some cards face up on the table (called “Community Cards”) which any player can use as part of their hand. The “River Card” is the last Community Card turned up. (See http://216.18.44.231/lvpoker/rules.html)
I think if you ate a pound of chocolate a day for sixteen years you would have far more problems than just lead poisoning. For example, someone who apparently spends the majority of their time sitting in a seat at a poker table and eats that much chocolate would probably be a bit heavier than our victim.
Also, if chocolate was a potential source of lead poisoning, I think we would have heard of a few product liability lawsuits by now.
As for the “pee in their seats” thing, I have heard of serious gamblers wearing Depends or something similar so they won’t have to leave the table if they hit a hot streak. No cite though…
No. The dead guy had a condition that was very seriously affected by elevated levels of lead in his blood. IIRC, he had a bullet lodged somewhere in his body from an old incident, but that wasn’t quite enough. But the bullet AND the levels of lead from all the chocolate were enough to push that threshold over the edge, when combined with the eyedrops, to poison him.
In a normal, healthy person a pound of chocolate a day would cause serious constipation, but probably not lead poisoning.
I have heard of gambling addicts who do indeed wear “Depends Undergarments” so that they never have to leave the table.