I think the glove is meant as an hinted understanding of Lester's actions. The loss of the first glove ('Contracted' killing by Malvo) Leads to the completion of negative action, the discarding of the second glove. (Murder of his wife). So Molly thinks she knows what he did and tries to tell him so. Hoping he will…

Good.

There has been no indication the she, at the point of shooting, is or is not in active duty. Right? Did it matter?

Let's go through these problems you have with the episode.
-1. They fit the same profile. So if Hannibal Lecter could be the Ripper so could Chilton.
-2.Hannibal as surprised and outsmarted some of the FBI's elite agents. He would have taken out these errand boys, that he expected to be there at that time, with relative…

You are right.

Didn't Hannibal eat them? I thought Will alluded to that in his conversation with Chilton in the beginning of this episode?

He would have known It would have been his death, killed through the legal system or by (Miriam) Hannibal. Running away was the only survivable option. Until Jack had him in range he surrendered. Trying not to die was his only motivation.