I didn't think that dude would die this fast. And omg, did Debra catch Dexter with a knife or sharp glass? That's what it looked like in the teaser for the finale. I don't understand why Dexter didn't just use his mind over brawn to explain to Quinn that the dude was insane and to let him go before he sued. Quinn probably would've just untied him and let him go. Debra will inevitably discover that Lumen is the other victim either way.