Case 196

Boy A

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

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

The killer left 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 slayings. A break in the case turned the investigation on its head, leaving detectives stunned to discover the truth about who was responsible.



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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