In the case of explosives being thrown at Prime Minister Kishida, who was visiting to support the election at a fishing port in Wakayama City, it was found that security cameras showed a person who looked very similar to the suspect using a station in the city about an hour before the incident. The police believe that he entered Wakayama just before the incident and went straight to the scene, and are investigating the detailed footsteps.

On May 15, police arrested Ryuji Kimura (2), an unemployed man from Kawanishi City, Hyogo Prefecture, on suspicion of obstruction of business in an incident in which two people were injured when a cylindrical explosive believed to be made of metal was thrown at Prime Minister Kishida, who was visiting a fishing port in Wakayama City to support the election, and are investigating the details of the incident.

According to those involved in the investigation, a subsequent investigation revealed that a person who looked very similar to the suspect was seen on the station's security camera using the Nankai Electric Railway's Wakayamashi Station in the city center after 24 a.m., about an hour before the incident.

It is more than 1 kilometers in a straight line from Wakayama City Station to the fishing port on site.

The family of the suspect who lives with him said that he was at home the night before, but when he woke up the morning of the day, he was gone, so the police believe that he entered Wakayama just before the incident and went straight to the scene, and are investigating the detailed footsteps.

In addition, at the fishing port at the scene of the crime, investigators from the Wakayama Prefectural Police have been investigating the inside of fishing boats in the harbor and diving into the sea since the morning of the 18th to check for fragments of explosives.