A bottle of water, flowers, candles, and stuffed animals help form a makeshift memorial in the parking lot of a Walmart store near the site where authorities Sunday discovered a tractor-trailer packed with immigrants outside a Walmart in San Antonio, Monday, July 24, 2017. Several people died and others hospitalized after being crammed into a sweltering tractor-trailer in the midsummer Texas heat, according to authorities in what they described as an immigrant-smuggling attempt gone wrong. (AP Photo/Eric Gay)