Did you just make that up? I have never heard that claim before and searching for Ross Ulbricht ketchup just leads back to your comment, so you seem to be the first person to ever claim this.
https://arstechnica.com/tech-policy/2015/04/how-the-feds-sta...
>Force got Green to sign a waiver, thereby commencing his role in an impromptu staged torture sting against DPR. Soon Green was being dunked in the bathtub of a Marriott suite by phony thugs who were in fact a Secret Service agent and a Baltimore postal inspector. Force recorded the action on a camera. “Did you get it?” Green asked, wet and wheezing on the floor. He’d felt like their simulation was a little too accurate. They dunked him four more times to get a convincing shot.
There used to be an online archive of every little bit of public information known about the Silk Road's administrators and their court cases. I can't find it anymore. It was over 10 years ago. All I can remember is the site had a weird url.