I did not locate that, but some other background information on Midlothian, TX:I believe there was a fire at a tire recycling place near a Starbucks in Midlo shortly after her death. That would have been convenient.
Cementipedia - http://www.downwindersatrisk.org/cementipedia/
"...Not Just Steam In the summer of 2008 Amanda Caldwell and Susan Waskey, two University of North Texas Geography graduate students, did something no one had previously done. They added up all the emission reports submitted to state and federal government by the three cement plants and adjacent steel mill in Midlothian, Texas. Their report, Midlothian Industrial Plant Emission Data was the first to try to document the cumulative impact from what is the largest concentration of smokestack industries in North Texas. ..."
And just for general background information on the Midlothian area per Wikipedia: "...Midlothian became a prime area for cement quarrying due to the Austin Chalk Escarpment, a unique geological formation that runs north-south through the city. Three of the top ten largest cement factories in the United States operate in the city: TXI (formerly Texas Industries), Holcim, and Ash Grove. Gerdau Ameristeel, formerly Chaparral Steel, a large steel factory, is adjacent to TXI's cement plant. ..."
Interstate 35 runs from the border at Laredo, TX, to Duluth, MN. At HIllsboro, TX, the I35 splits into I35E to Dallas and I35W to Fort Worth, joining together again as I35 to Oklahoma just north of those cities. Midlothian is situated south of DFW, right in between those I35E and I35W branches. I35 is the highway that became famous in discussions of the "NAFTA Superhighway".
Places to burn unwanted things? A major interstate?