I'd call myself OPERA
Victims would be Single Male 30-50, with no real tangential connections between them.
I'd do the actually dirty deed painlessly and fast, to avoid disgusting myself or causing the blood to coagulate.
I would then rearrange their parts around their house/apartment in a tasteful, avant garde art display. Each room would be wired with an wireless sensor, each linked to a mini mp3 player. Each player would have a clip of a specific Opera piece, like something from Der Freischutz. As the police, or whoever stumbles upon the victim would wander through the house, each room becomes like an exhibit, until they reach the final room where the music reaches it crescendo and the last, most important piece is displayed. No shocking heads in fridges. No grotesque campyness. Just good tasteful sculpture and mixed media displays, like a Blood Eagle over the bed, with the other parts arranged tastefully as to be both disgusting and yet dignified.
Since the blood won't have coagulated, it will pour readily and be sloshed all over the floor, in wet puddles. Heads arranged as mighty busts shall gush with their passions, through their eyes, mouths, and necks. The blood eagle will be drenched as to give off the impression of the wings of a mighty bird as it braves the rain. All the ugly parts I can't work with will be thrown in a Coleman ice chest labeled "junk" and left behind in the fridge.
So yeah...
I'd watch a BS documentary about it if I were me.
Better than Dexter anyway.
At least I'd have class and some good taste.