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.
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