STORY: “We want to create awareness about what is going on. How can we celebrate Independence Day when people are being trapped in an environment of hate, in an environment of fear, dying trying to cross the border,” activist Hugo Castro told Reuters.The truck, carrying migrants from Mexico, Guatemala, Honduras, and El Salvador, was discovered abandoned last week in a desolate, industrial area near a highway on the outskirts of San Antonio, Texas, about 160 miles (250 km) north of the U.S.-Mexico border.Temperatures in the area that day had soared as high as 103 Fahrenheit (39.4 Celsius), and authorities called to the scene and found no water supplies or signs of working air-conditioning inside the cargo trailer.Mexicans accounted for about half of those who perished. Eleven people – including minors – remain hospitalized. In addition to 27 Mexicans, the victims included 14 Hondurans, seven Guatemalans, and two Salvadorans, Mexico’s government said. The nationality of some migrants in the truck remained unclear.