Re: Weirdo in a van with no windows
The implication here is that when there is a kidnapper or serial killer etc on the loose, people tend to look around for people who look suspicious or who are behaving suspiciously (ie the creepy guy sitting in the windowless van in a road near a school). However, it is suggesting that it would be more useful to look more carefully at the "pillars of the community" - the seemingly nice, middle-class, well-educated, employed people who are well respected in their community. The suggestion is that they are actually more likely (in some instances) to be the people committing those dreadful crimes.
Remember - correct capitalisation, punctuation and spacing make posts much easier to read.