It took an act of Congress to compel the FBI to reinvestigate more than 100 civil rights-era murders. From FRONTLINE PBS comes the podcast “Un(re)solved,” a look at the attempt to close open cases of racially-motivated killings from five decades ago.

FOR OUR SPOILER-FREE REVIEW OF "UN(RE)SOLVED" GO TO MINUTE 28:00

In 1996, a French tourist was murdered outside her Irish vacation home. Suspicion in the death of Sophie Toscan du Plantier turned to a man already publicly involved in the investigation. Netflix’s three-part series “Sophie: A Murder in West Cork” revisits Ireland’s most infamous homicide.

FOR OUR SPOILER-FREE REVIEW OF "WEST CORK" GO TO MINUTE 1

In crime of the week: nacho average customer.