Whatever the "JW connection" turns out to be for these two human turds, one thing's for certain: The dub organization tends to attracts these kinds of whack jobs and misfits. So it would not surprise me if one or both of them became involved with Witnesses at some point in their lives.
It would also not surprise me to learn that his religious theories have their root in some WT publication or doctrine. I mean, look at the pattern: He printed up religious brochures; he applied to do "street work" on the UC campus; he was quick to "give a witness" whether anyone wanted to hear it or not. Next we'll hear he was going door to door!
As this gets more public exposure the dubs will be quick to point out that the Garrindos were not "real" dubs and were just passing through.