When the antagonist escapes from the hospital he is wearing workboots. Patients are usually barefoot or wearing slippers.
Professor states damage of the Limbic Region is the reason for criminal behavior. First, the the Limbic Region is a misnomer - because the brain has a Limbic System that is made up of several parts of the brain. Second, it facilitates memory storage, memory recall, and emotional states. Finally, the professor's picture showed the "region" to be on the outer front of the brain. The Limbic System is within the brain near the core.
A sheriff's deputy would not be taking evidence to the professor but to detectives. They would be the ones working with the professor.
There is no Oakhurst State Mental Hospital - nor has there even been one in the state of Oklahoma. The only Oakhurst is an unincorporated town near Tulsa.