Family and police hold concerns for his whereabouts as he has a medical condition and requires treatment.
He was last seen walking from the facility at 10.50am and it is suspected he may be traveling on foot in the South Brisbane area.
He is described as having a fair complexion, 172cm tall, proportionate build with green eyes and brown/grey hair.
He was last seen wearing a long grey shirt and black shorts, carrying a black bag (pictured).
Police are appealing to Barry, or anyone with information regarding his whereabouts, to contact them.
If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting or call 131 444.
Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.
