HBO’s collection of new crime-centric documentaries continues next month with The Art of Political Murder, which recounts the 1998 murder of Juan Gerardi, a Guatemalan bishop and human rights activist who was killed for blaming the country’s military for some of the atrocities in its brutal, multi-decade civil war. George Clooney and his producing partner Grant Heslov executive produced this documentary, and a new trailer has been released which you can watch below.