If it's Bosco from The Mentalist...he dies in his hospital bed, after whispering Jane something in his ear about red John. (episode 8, season 2)
31 January 1888 Turin Italy
he is dead in Turin, Iitalie
John Bosco died in Turin on January 31st 1888. He was 72 years, 5 months and 15 days old when he died.
No John does not die in the book or movie, but his dad dies