[s2e10] The Hour Of Death Today

If you were referring to a different "[S2E10] The Hour of Death," there are a few other possibilities, though Grimm is the most prominent:

An episode in Season 2 titled "Signed in Blood" focuses on handwriting analysis to uncover premeditation in death cases. Grimm season 2 episode 10 review: The Hour Of Death [S2E10] The Hour of Death

Analyze Ryan's psychological state. He is a Wesen who wants so desperately to be a "heroic" Grimm that he becomes a monster to his own people. If you were referring to a different "[S2E10]

The killer is revealed to be Ryan Smulson , the seemingly clumsy and eager police intern. [S2E10] The Hour of Death