I can agree with both posts
MooseMeMuch,
Scooby Doo 4U
like you wrote
MooseMeMuch, I agree that it's very unlikely that the graverobbers will kill 3 women in order to escape charges for vandalism due to Suzie's testimony.You don't commit a crime when you can get a life sentence or death penalty in order to avoid some very light punishment for vandalism, I also don't think they had the ability to commit a crime like that /
From the other hand I can't rule out that the graverobbers know more than what they told.
I also agree
Scooby Doo 4U agree with your quote:
if someone in a drug ring at one level or another is afraid that someone might nark on them to police, and have already proven themselves capable of telling police what they knew regarding other things (Ref. Suzies statement regarding the graverobbers), I'm sure she would be living on borrowed time it they were worried enough about her narking to the police, especially if it could easily lead to a drug ring being busted all the way to the top of the ring.
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I think that people from the very Extended circle of Drug ring were afraid that the testimony against the graverobbers will lead eventually to them ( if Susie had much more information)
The criminals could have been those who were not familiar directly to the graverobbers because we are probably talking about extensive circle of criminals .
I still strongly believe that the crime was related to Drugs and the motive was to silenced Sherrill and Suzie, , I also think that It is no a coincidence that the kidnapping happened so short time before Suzie's testimony.