Yes, out here in the suburbs rumor is that it's suicide. No, I haven't heard a name. Yes, there's been some chat about connections but right now every death or crime in the six-state area is being linked to Baby Doe. Which is good in one way. I don't think anything's going to slip through the cracks.
It's not uncommon for people to commit suicide off the various bridges, and there have been a couple of bodies over the years too. Oddly for an area completely surrounded by and dotted with water, not very many bodies are put in the water, though. It's more common to dump them in an isolated wooded area, or bury them on a sandy beach.