IMO, the River Guy is not Isaacs. The sketch of the River Guy doesn't even look like Isaacs. The River Guy sketch also resembles a sketch of one of the suspects in the Barbara Nelson murder. That suspect in the Nelson murder appears to be about 18 years old at the time of the sketch. Several people I'm in contact with, say, in their opinion, that he resembles someone they know whose family rented land to Alpine Valley concertgoers, that he owned a watch just like the one found near Isaacs, had woman troubles at the time with someone named Mary and had a warrant out for his arrest related to a woman named Mary at the time. He had that arrest warrant issued 06/10/1994, which was served 10/21/1994. Too much to be coincidence. I, and these several people, in our opinion, suspect that the River Guy is responsible for other unsolved murders in the area, as is the other suspect in the Barbara Nelson murder.