Here’s the bottom line: speculation is defined as an “educated guess”. It is a projection based on some facts, but is not 100% proveable (at the time). It is factual that Pablo has messed with lay exorcisms in the past. It is factual that he has some sort of “diablo” nickname. It is factual that he knows about curses and such things, because he has accused others (projection?) of being involved. It is factual that animals are killed during rituals and in strange ways, often burned. It is factual that, in Boston, animals have died in strange ways, with Pablo’s dog being burned. It is factual that Pablo is not a practicing Catholic and has stated openly that he dislikes Trads. It is factual that he is a liar, bully and a cheat.
Add all of this up, and it’s valid speculation (with much circuмstantial evidence) that Pablo is involved in witchcraft of some sort. Doesn’t mean he is, but it’s not wrong to think it’s possible.