Thanks. My recently deceased shrimp was a tiger pistol, too. I plan to get another one (providing my goby survives) after the water quality settles down. As to how to catch one, I have no clue. They are too fast to catch. Perhaps a trap of some sort.
The only time I ever caught one was when I broke down my 75G tank 6 years ago and had emptied the tank and was scooping out the crushed coral/sand and he jumped up and tried to run. Until then, I though he was gone because I hadn't seen him in a while.