[bruce]

Without knowing the betting leading up to the river, the size
of the reraise suggest either a really big hand or a bluff.
I think if the bluffer made a much bigger bet he may have
picked up the pot. There probably was enough of a suspicion
in Cassidy's mind about a bluff and if you factor in the pot
odds he's getting it's not that difficult to see why he called. Bottom line, great call by Cassidy.

Bruce