Well, since you're persistently asking, I'll tell you.
I was confident that we executed the Serial Killer, not the Hypocrite, and that you would use the Hypocrite to target the Maniac. After that, dealing with him would still not be easy, but it would be possible.
Executing the Maniac on the day Link was executed would have been suicidal, given the circumstances. There was a lot of confusion, no one trusted anyone, it was unclear whether it would even be possible to bring the execution of the Maniac to fruition, especially Locken, who had so conspicuously "integrated" into the town. And we weren't even 100% sure it was him. And he didn't get executed on the first try.
I understand the situation you personally found yourself in; the choice was limited, yes. But I wouldn't complain in your position, considering the very sluggish gameplay during the day. You could have directed the vote in the right direction a hundred times, but you didn't. Even Link, who was more confident about the Maniac than anyone else (and who was generally better than everyone else during the day), didn't even put his execution on the agenda. I won't even mention that if subtlety doesn't work, at worst, one Mafia member can reveal himself and form an "alliance" with the town against the Maniac. It's not necessary to talk about the fact that you can easily kill the Maniac with the Serial Killer in one night; no one will probably think to ask Tox about it. There's your strategy.
In short, bad luck. The town made many mistakes, but specifically in this case, I'm sorry.