Yes and no. I'm accustomed to dealing with cases that are inexplicable by ordinary means, so I'm not unfamiliar with the concept of murder committed or aided by magic, I've never seen anything quite like this... and, well. Where I'm from, the kind of work I do is admittedly the exception rather than the rule, you know?
There isn't much evidence to go off of, here, and it's hard to work up a profile of the killer based on what is there. I'm not sure what the pattern to the victims might be; why they were chosen, what the killer gains from their deaths.