Well if you go to "Guinness book of records", and if you look at a males who have spent the longest time on death roll, then you will have your answer.
and the winner is;-
Iwao Hakamada (Japan, b. 10 March 1936) had been on death row in Japan for 45 years when he was freed in March 2014, following suggestions that police investigators may have fabricated the evidence upon which he was convicted. That makes him the world’s longest serving death row prisoner.