Exactly, Tertius. Even a gang of marginally retarded criminal morons would not repeatedly leave extremely costly weapons at he scene of a crime. Be like mailing in your fingerprints to the FBI or something. Even a novice killer (and these guys don't qualify) wouldn't do something that clearly insane. And because it is so absolutely bizarre and irrational, it also suggests to me that Calderon may have had a hand in this, too.