Yep you would not want to tell the wrong people, or who sold it to him may be a suspect.
I know silver is heavy. Lets see $750,000/$30.00 dollars per ounce equals 25,000 ounces, and 25,000 ounces/16 ounces per pound equals 1,562.50 pounds. Police should be looking for people walking around bent over because they have sore backs.
I know they have 100 oz bars and I belive you can get 1000 oz bars from the COMEX. Thats 250 100oz bars or 25 1000oz bars. I can believe that.
Now Ted Binion of the Horeshoe Las Vegas Binion's he had some silver. For those that don't know the "it can only happen in Vegas story" of him having around 6 tons of silver, and 100,000 rare coins buried in the Navada desert, I have included a link below. Story said it was worth 7-14 million dollars. Wonder what its worth today.