By Kim Palmer CLEVELAND (Reuters) - Authorities suspect alcohol was a factor in the death of an Ohio university senior found by student volunteers outside a parking garage after a campus-wide search, police said on Monday. David Hallman, 21, was reported missing by his father on Saturday afternoon after the Denison University student missed a noon appointment and did not answer his cell phone, said police in Granville, Ohio, where Denison is located. Hallman, who was from Erie, Pennsylvania, was last seen leaving a bar early Saturday about one-half mile from where his body was found on Saturday night, police said. Temperatures were at or minus-1 degree Fahrenheit (minus-18 degrees Celsius) early Saturday in Granville, which is about 30 miles east of Columbus, Ohio.

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