|Deery, left and Fox|
In a slightly different account from the Semi-Centennial History of the City of Rochester (by William Farley Peck and published in 1884), Fox killed himself because he was distraught over the "loss of his championship cue." Meanwhile on page 103 of the 1898 edition of Championship Billiards, Old and New, the author claimed that Fox, "some time after his defeat, was found dead in the river, and it has always been claimed that, crazed by grief, he committed suicide."
So, the question at hand -- as put forth by billiards writer J.D. Dolan -- is whether Fox was killed by a fly or a shark.