The skull in the last image the one on the tape measure is almost certainly a cat, the very large eye socket is a dead giveaway, and the dentition on the upper jaw 2 premolars would suggest Felis lynx. Can’t say for sure from the image but if there is a 3rd premolar then that would indicate Felis sylvestiris, however Wildcat skull's are normally less than 12cm.
I don’t have any information on Bob Cat dentition so can’t help you there.
Was it a complete skeleton were all the vertebra there, basically was there a tail present ?.