One Tomb Short of a Graveyard - Alex Cheradon, #5

The Messer Building is located in the heart of downtown Callahan. It's a building of architectural wonder. It's visible from almost anywhere in the downtown area. And it's home to the Darketo Sanction, a top secret organization that's housing the largest collection of mad scientists anywhere in the country. Two weeks ago, the security system in the Messer Building tried to kill every single human onsite and nobody knows why. Since the geniuses in the Darketo Sanction can't figure it out, they've decided to outsource the mystery to Alex Cheradon. (Although, to be fair, it's a building filled with a bunch of mad scientists.
This one shouldn't be too hard to figure out, right? Right?) Meanwhile, Devon Christian is on the edge of sanity. The voices in his head get louder every day. At some point, he's not going to be able to ignore those voices forever. And when he stops, there's only one person at the top of his hit list.?