Geolocation data showed Brad Simpson at a Home Depot around 9:53 a.m., where video and a receipt showed he purchased two bags of cement, a construction bucket with a lid, a box of 32-ounce heavy-duty trash bags, one bottle of Clorox disinfectant spray and insect repellent.
While in the parking lot of the Home Depot, he asked a man about the directions to the nearest dump in Boerne. After leaving the store, Brad Simpson intentionally placed his phone in “lock down” mode after he spoke with the man in the parking lot.
Over the next hour or so, Brad Simpson’s truck was seen leaving the waste site in Boerne. He then headed to a gas station in Boerne and bought two one-gallon jugs of water.
Surveillance footage showed the trash bags were no longer in the bed of the truck, but he still had the blue tarp, firewood rack and trash can at 11:15 a.m. He had also changed his shoes from sandals to cowboy boots, the affidavit added.
At around 1:41 p.m., a license plate reader captured Brad Simpson’s truck heading back to Kendall County. At that time, the blue tarp was no longer visible in the bed of his truck, and the firewood rack had been repositioned.
When Brad Simpson arrived at the school to pick up his young child in Alamo Heights at around 3:30 p.m., the bed of his truck did not contain the firewood rack, surveillance video showed. He did have a heavy-duty trash can and ice chest at that time.
At 4:10 p.m., he went to a car wash and cleaned the inside of his truck, the affidavit states. The video showed “dried cement splashes” near the rear passenger compartment and bed. Only the ice chest was visible inside the bed of the truck.