Stuck Between Character Names - Help!

Hey guys!

So I’m plotting out a new character for the last two books in my saga, Ties of Blood. It’s a villain, the main one that’s going to be revealed in the end of the third book, so, I’m planning on him being evil. Very, very evil. I think this character will be the darkest and most twisted up until now, and I can’t decide on his name. I’ve got his personality down, looks and ticks, even little goals, but… I’m having trouble choosing the name.

I don’t know about you guys, but every time I start a new character I try to give them a name that’ll fit, like, it says something about that person. Many characters lose if their names aren’t good or just too used up. So if you guys could help me decide that would be great.

I’m stuck on these three:

Cain

Devlin

Malachi

Can you guys help me decide? It would be really helpful :)