first thought I had when he brought an unencrypted laptop into an airport is "He was using Windows". I have my reasons for those suspicions, but I hope journalists or people thats are following the case from now on can find if this guy was REALLY that stupid.
If I was a betting man I'd put my money that this guy was running his setup on Windows. I Really wanna find out for myself because I'm already so proud of my opsec lessons and I'm not committing ANY crimes. If I was a dealer - I'd NEVER do that to any of you.
All we have to go on is the complaint that was posted and it doesn't specify. Check his PGP key for a software signature maybe, but otherwise we probably won't know for a while. Doesn't matter at this point; he made plenty of mistakes.