I finally saw the pashkevilli and it did not say what the JPost article said. Nowhere is there a psak that he is innocent, rather it just says that everyone should help the family to prove that he is innocent.
Below is the actual קול קורא
End of Update
For those of you who have not followed the news in Israel, Yisrael Valis, a 19-year-old father is accused of violently killing his infant son. He was arrested before Pesach and is sitting in jail.
I cannot comment on the facts of the case other then what I have heard in the media.
Today I heard on the radio and saw online Halachic decree: Valis is innocent that R' Elyashiv paskened that he is innocent.
I don't understand this for many reasons.
1. This is not something that can be paskened on, he either did it or he did not. There is nothing to pasken.
2. There was no trial, no witnesses etc. brought before R' Elyashiv, the psak is based on what the "askanim" told him.
IMHO, this is a tremendous chillul hashem when these kind of "psakim" are reported. It makes halacha and psak into a joke.
The day he was arrested I heard an interview with Yehuda Meshi Zahav, the founder of Zaka, who is no stranger to being arrested. He said that while he does not know the specifics of this particular case, terrible things happen in the Charedi world (which he personally has knowledeg of through Zaka) and that the Charedi world need to stop trying to hide everything under the rug.