And this reads as if someone was trying to force him to install means to spy on his users, and it wouldn't be surprising if the aim was to spy on Snowden directly (if he really used this service).
No, this has nothing to do with common criminals and everything to do with Snowden.
He shut it down because that was the only way to legally prevent the government from spying on his users.
http://securitywatch.pcmag.com/privacy/309277-judge-says-fbi...
I wonder why he didn't challenge it.
The Government has been trying to get into Lavabit longer than that.
Although, perhaps they already knew that Snowden was using Lavabit and started the process immediately after his flight to HK.
If anyone can recommend someone who can provide counsel pro-bono let me know and I'll forward the message along.