From the Charleston Daily Mail:
Holgorsen's behavior allegedly reached a point that necessitated involvement from on-site security, sources said. Holgorsen was escorted out of the casino with the episode caught on surveillance. University representatives who were with Holgorsen were said to have then intervened. No arrest was made.
Police records indicate Metro 911 received a call from the casino at 3:13 a.m. that night. A "white male" was said to be "refusing to cooperate with the casino's management." Casino supervisors had the male detained at the time.
The Nitro Police Department was dispatched to the scene. The official records do not say what happened next, but it's believed Holgorsen was released under the supervision of those he was with.