How did Matsuda Jinpei die?

Kenji Dihara, a former member of the explosive ordnance disposal class of the mobile group of the Metropolitan Police Department, died while defusing the bomb, so he was transferred to the search class. Because his best friend was killed, he vowed to catch the prisoner for revenge and transferred a lesson.

Three years ago (TV304 shook the police station, and there was a hostage incident of120,000 people three years ago), he was killed to see the last clue provided by the same bomber.

Before he died, he texted Sato that he liked her.