Investigation Discovery’s lineup is heavy on true crime served sensationally (“Wives With Knives,” “Deadly Affairs”), but the journalist Tamron Hall sometimes brings more serious programming to the channel, as she does on Sunday, Aug. 7, with “Guns on Campus: Tamron Hall Investigates.” The program examines the debate over whether college students licensed to carry firearms should be allowed to bring them into class, but its jumping-off point is an attack 50 years ago at the University of Texas at Austin. Charles Whitman, after killing his wife and his mother at their homes, went to the school’s signature tower and killed 14 more people, three inside and the rest sniper-style from the top of the structure. One of the men who helped end his rampage was an armed civilian, providing Ms. Hall with an avenue to discuss whether armed students might have stopped some of the more recent campus shootings in the United States. It is, of course, a polarizing issue, one that the program explores from both sides.



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