Nate McLouth sent one into the Allegheny River tonight...?

Question

... over the stands, out of the park, and into the river (and he probably only weighs 170 lbs).

How many other players have hit one into the river out of PNC Park? (not counting the HR derby)

Answer 1

wow Nate the Great strikes again, its a shame he is on the pirates cuz he could really carry a team if he had a good supporting cast

Answer 2

Total, I don't know but, I recall Sean Casey being the first.