Grandmother Hypothesis Guest: Kristen Hawkes, PhD, Professor of Anthropology at the University of Utah Grandmas are great. They bake and knit and organize family gatherings. And nobody can spoil a child like a loving grandmother. That doting turns out to have been an important driver in human evolution. University of Utah anthropologist Kristen Hawkes has been developing this “Grandmother Hypothesis” for years and recently added a new benefit to the list of things grandmas have done for humans: She says they’re responsible for the male tendency to pair up, rather than mate with multiple partners. Peace Officer Guests: Scott Christopherson, Director and Producer of the film “Peace Officer,” Assistant Professor of Theater and Media Arts here at BYU; Brad Barber, Co-director and Co-producer of “Peace Officer,” Associate Professor of Theater and Media Arts here at BYU; Dub Lawrence, Former Davis County Sheriff “Dub” Lawrence had been retired for several decades when, on September 22, 2008, he found himself watching helplessly from across the street as a SWAT team swarmed the home and driveway of his son-in-law, Brian Wood, in Farmington, Utah. Wood was distraught and threatening to kill himself. Dub Lawrence assured his family that the police were professional and knew what they were doing. But things went bad and Brian ended up dead of a fatal gunshot wound which the police initially claimed was self-inflicted, but later admitted had been fired by one of the officers.  Since then, the man who started the SWAT team in Davis County in 1975 has been on a crusade to bring it to justice in his son-in-law's death. The documentary about him - called “Peace Officer,” - won both the Grand Jury and the Audience Award at last year’s South-by-Southwest Film Festival and it is playing on the PBS Independent Lens series this Monday, May 9.