What more is there to know? If there had been sufficient quantities of drugs found to charge someone with distribution offenses, don't you think the police would have released that information? The truth is there is nothing more to know. A home was invaded by police, a dog was shot and killed, several thousands of dollars of property damage occurred, peoples' lives were put in danger (LEO's and citizens) and miniscule amounts of pot were found. If one supports the WOD, then this is just collateral damage. If one doesn't support the WOD, then this is evidence of legalized tyranny.
The reason behind these types of raids is that politicians and LE officials have decided that securing the evidence (drugs) is more important than the lives of the inhabitants of the home and the lives of the officers instructed to carry out these legalized home invasions. Ain't social engineering grand?
"...then this is evidence of legalized tyranny."
Place them on the border, or send them to Iraq to execute their skills against the insurgents in Iraq. Killing the family pet of an American citizen, come on.