The university's website states that Caudill is 5-feet, 7-inches, weighs 195 pounds and has hazel eyes. Caudill is also believed to be clean shaven and has a shaved head.
Caudill was last spotted in the area of Union and Shaffer Streets.
Ohio University alert messages state people are advised to avoid the area, do not walk alone and report all suspicious activity to the Athens Police.
The Ohio University Police Department told 13News there are extra police officers patrolling the area. The officers are still searching for the suspect, and there was no need for a shelter in place.