What was learned about the shark once it was caught? How was doubt still prevalent?

Schleisser hauled the shark home to his taxidermy studio. The shark was 7 ½ feet long and weighed in at 350 pounds. He cut the shark's belly open and found human bones and remains that together weighed fifteen pounds. Four days later, he had completed the taxidermy of the shark. Schleisser had sent some of the bones to Dr. Lucas for analysis. A short while later, Schleisser received confirmation that the remains were indeed human. There was controversy among the experts as to the type and age of the bones found inside the shark, spawning doubt in some minds that the shark was the man-eater that had been on the recent rampage.