He incited his friend to commit suicide. 
We need these laws here in the United States.
A distraught father who attacked his best friend when he discovered the man had sexually abused his daughter, then six, will not be charged with murder.
Vyacheslav 'Slava' Matrosov, 34, was suspected of stabbing Oleg Sviridov, 32, to death in a forest near the village of Vintai in Russia after making him dig his own grave last year.
It came after Matrosov found sickening footage on his friend's mobile phone which appeared to show his daughter being forced by Sviridov to perform a sex act on him.
Matrosov originally faced trial for murder but sources close to the case say the murder charge has been dropped in a landmark decision.
The anguished father will instead now face prosecution for inciting Sviridov to commit suicide, which carries a lesser sentence than murder.

We need these laws here in the United States.
A distraught father who attacked his best friend when he discovered the man had sexually abused his daughter, then six, will not be charged with murder.
Vyacheslav 'Slava' Matrosov, 34, was suspected of stabbing Oleg Sviridov, 32, to death in a forest near the village of Vintai in Russia after making him dig his own grave last year.
It came after Matrosov found sickening footage on his friend's mobile phone which appeared to show his daughter being forced by Sviridov to perform a sex act on him.
Matrosov originally faced trial for murder but sources close to the case say the murder charge has been dropped in a landmark decision.
The anguished father will instead now face prosecution for inciting Sviridov to commit suicide, which carries a lesser sentence than murder.