Thomas ignored evidence that didn't fit with his theory. The case the BPD first presented to the DA was a joke...even a layperson could see that. No prosecutor in his/her right mind would have tried to go to trial on the flimsy evidence.
When it became evident that the "abrasions" were stun gun marks, the BPD quit pursuing trying to get to the truth on that.
Thomas repeatedly said that PR's handwriting was the closest to a match, "of the people that were in the home at the time." Very clever wording. There were others that were a lot closer---Patsy scored a 4.5 out of 5, with 5 being no match.
Giving any credence to Foster shows poor judgment. His prior claim to fame was based on having known writing samples by the author...and was just a matter of plugging into his computer to pick out similar phrases. Most of us know Foster's actions on this case, which are mindboggling--even moreso, that the BPD thought this guy was credible.
Thomas ignored lack of motive, history of the parents, the strength required to deliver the head blow, the complexity of the garrotte, the lack of knowledge by the parents of movie lines, and the foreign and unexplained DNA.
When I say Thomas, it wasn't only him---I think most of the BPD were only too happy for him to be the front man, and the leaker. This was all about egos, and the fact the BPD were made to look like keystone cops in the media soon after the murder, and the Ramseys wouldn't cozy up to the BPD and put on a good front to the public.