Shiniichiro Yamasaki

Shiniichiro Yamasaki was a criminal sent to death by Kira.

Plot
While Yamasaki was in prison, Light Yagami used his Death Note to make him leave a message saying, "I know that L suspects the Japanese police" but this ends up failing due to the Death Note rules. He ends up dying of a heart attack at 6:00 P.M.