Denied.
There's been too much roleplay that has occurred since this PK took place. In addition, the reasoning for the PK that Saito provided was more than adequate. We very rarely make mistakes in regards to NHC PKs, which are only ever really appealed if instances of metagame are discovered or things of that severity.
And as for your note regarding how the community perceives your PK, as to how many people who may or may not believe the PK was invalid, this is not something we take into account when issuing a PK. It doesn't matter how many people you garner support from, that's simply not a factor.