The Henry Pratt Company is a subsidiary of the Mueller Water Products Company. "Watch the Water".
https://en.wikipedia.org/wiki/Henry_Pratt_Co
http://www.muellerwaterproducts.com/about-mueller-water-products
The place the shooting happened in Aurora is Pratt Vales manufactoring plant, founded in 1888 and now owned by Mueller Water Works. Trumps El Paso speech, he said "1888 check into it". Q's "Watch the water".
On September 4, 1996, Tyco International Ltd. of Exeter, New Hampshire purchased the Henry Pratt Company and then transferred ownership in 1999 to a private investment group headed by Credit Suisse. From 1999 to 2003, Pratt acquired the Ardillo Corporation, assets of Lindsey Fabricators, Inc., Virginia Valve, CCNE, Inc., Hydro Gate Corporation, Milliken Valve Company and Jingmen Pratt Valve, Co., Ltd. The Henry Pratt Company is a subsidiary of the Mueller Water Products Company.