They did their homework after the fact, but evidence recovered at the crime scene was scant at best. And the first part of the report is little more than CYA verbiage as to why charges hadn’t been filed sooner.
Thankfully LV, AC, Z and CD were stupid enough to communicate electronically and I’m very glad charges have finally been filed. But to me it’s clear LE was left scrambling to come up w/evidence when they realized the investigation was being scrutinized. I’m grateful for LE efforts made after the fact, but IMO (and MOO) that doesn’t excuse the deplorable initial investigation.