Halya Coynash: Putin wants 'grounds' to release innocent Ukrainian political prisoners

Grotesquely flawed trials and proof of total innocence are not enough for Russian President Vladimir Putin, it seems. He needs 'grounds' why he should release Ukrainian filmmaker Oleg Sentsov, civic activist Oleksandr Kolchenko and other Ukrainian political prisoners. Nor, according to the source close to Putin, are western demands of any influence, though that may be what he's supposed to say.