I am not sure you guys are on the right trail..check on the guys that said they met with jefe541...Zach_BTC and mingophoria says he met with jefe541's brother..I am not sure where this info is coming from that you have but you should look in the USA as that is closer to where I think he truly is. I am following up on some stuff and I have a friend high up in a government agency checking out IP info from the past for me now. Look deeper than what he told you. It was to throw us off.
He PM'd me that info. I know that it's probably fake, but it's worth following up every lead we have. People do get sloppy. That phone number for example - at the point he gave it to me he was very likely expecting me to call and confirm, so it may be a number he or an associate of his had control of so he could allay my fears. Burner phone? Most likely. But someone answered it just an hour or so ago. Your high up government buddy would very likely have more success than me in pulling info on the number though

Edit: He's also got a pretty extensive post history, it'd be worth seeing if he posts from a limited number of IPs and follow those up too.