Good news! Gonzalo Lira is alive.
He was picked up and detained by the Ukrainian SBU on Friday. He recently made his first appearance since then in a short video which you can watch here:
https://www.youtube.com/watch?v=R2yeSOcNlgEApparently, Gonzalo’s computer and cell phone were taken from him. He no longer has access to any of his social media accounts. He reiterates on the stream that he can't say anything publicly except that he's physically fine. He is still in Kharkov, and he is not allowed to leave the city.
I really feared he was a goner.