Gun used by UT Tower Shooter for sale

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AUSTIN, Tx. -- Here in Texas, we're no stranger to guns.

Heck, it seems like there's a gun show every weekend. Whether they're new or old, a lot of Texans have them and want them.

Now there's a gun on the market that we're calling "morbid memorabilia."

Why? Because it's the rifle reportedly used in the mass shooting at the University of Texas back on August 1, 1966. That's when ex-marine Charles Whitman went on a shooting spree on top of the UT Tower, killing more than a dozen people.

Fast forward almost 50 years and now the rifle is for sale, and it's not cheap.

A listing on the Texas Gun Trader website shows a starting bid of $25,000 for the Remington 700 ADL rifle.

The man who posted the ad claims he's selling it for a collector who wants to remain anonymous.

The ad, also, said documentation will be shown to prove authenticity and that owning the rifle is a "once in a lifetime opportunity."

Opportunity?! That's the last word we'd use to describe this disturbing sale.