Found out his date of birth too:

27th of March 1989

We are getting close, and I know he is reading

You know where to send the money back to

So we have his date of Birth
An (old) adress
An (old) phone nr
His IP adress from reddit.
His username from reddit.
His slack IP's

That should give the police enough information to locate this guy

He can reach out to me by PM to sort this shit all out, or he has to face the consequences

I know he is reading, bcuz all of a sudden he tries to remove every trace

You can keep 10% of the money and use it for your drug addiction lol, will be a rough time in jail without any drugs my friend