Authorities in Nagasaki are trying to identify a man captured on video footage with a young boy as they suspect he was involved in the recent kidnapping and murder of 4-year-old Shun Tanemoto, police said Saturday.

The police said they are analyzing footage from security cameras along a shopping street that showed the man with a young boy who looked like Tanemoto. The cameras were located in a shopping area about 150 meters from the car park where Tanemoto was killed.

The police are trying to identify the man based on information such as his height and clothing as the video images are blurred.

Eighteen surveillance cameras are set up along the 360-meter shopping street. The images the police are examining come from nine cameras that are positioned along a 160-meter stretch on the west side of the street and were taken between 7 p.m. and 11 p.m. Tuesday.