the 48-year-old is likely to be released in the summer after 13 years in captivity without charge or trial .
it came as the man appointed by president barack obama to speed up the closure of the notorious prison camp said there was ` no sound reason ' for keeping the terror suspect locked up any longer .
british guantanamo bay detainee shaker aamer -lrb- pictured -rrb- is expected to be freed in june , us government sources have revealed that he is pictured right and left with son michael and daughter , johninh that