Higurashi: When They Cry (2006)

S1E11 The Cursed Murder Chapter - Part 3 - Boundary

Keiichi makes up his mind: Teppei has to die. Using Satoshi's baseball bat, he beats him savagely until Teppei is dead, then buries the body. As Keiichi heads back home afterward, he runs into Takano, whose behavior strikes him as oddly suspicious.