This is a “Wheel Bug”, part of the Assassin Bug family. It eats other insects, including caterpillars. It has a fang on the front of its head that it uses to “stab” its prey. It WILL “stab” humans if it is handled casually or annoyed. The “stab” from its fang is very painful.
I encountered this strange looking creature on the bridge as we were crossing Sunday morning on our walk. I’ve never seen anything like this before, so I’m incredibly glad the shot came out so well.