One man has been charged and warrants are out for another in connection with an alleged beating at the Remand Centre that left the victim with permanent brain injury.

si-mang-warrant-220

Calgary police are looking for 21-year-old Kei Hu Mang, whose whereabouts are unknown. (Calgary Police Service)

The attack happened last August when 24-year-old Denis Telyakov was in the Remand Centre on charges of uttering threats — charges that were later dropped.

Calgary police say he was hospitalized for several months and suffered permanent injuries as a result of the assault.

Telayakov's family says they will never be able to cover the medical expenses.

Calgary police arrested Justin Brett Decoux, a former cellmate of the alleged victim, and charged him with aggravated assault.

A warrant has been issued for 21-year-old Kei Hu Mang, who was also a cellmate. His whereabouts are unknown.

Mang is described as Asian, five feet eight inches tall, 138 pounds, with black hair and brown eyes.