Case 196

Boy A

*** Warning: This case involves a child victim ***

In March 1997, residents of the city of Kobe, Japan were horrified when dead and mutilated cats began appearing at random along sidewalks. The public’s horror intensified when two children in the area – Ayaka Yamashita and Jun Hase were savagely murdered within a few months of each other.

Their killer had a calling card – a series of disturbing letters signed as “Seito Sakakibara.” In a case that mimicked that of the Zodiac Killer in the USA, Japanese authorities desperately searched for the man responsible for the brutal killings. A break in the case turned the investigation on its head as detectives were stunned to discover that the person responsible was someone entirely unexpected.



Casefile Presents



Research & writing – Jessica Forsayeth

Creative direction – Milly Raso

Narration – Anonymous Host



‘Flatline intro’ and ‘Come play with me’ intro and outro –

Audio production – Mike Migas 

Scoring – Mike Migas and Andrew Joslyn



Logo and website design – Paulina Szymanska

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