Susan Zalkind’s boyfriend Erik was brutally murdered in 2011 and his killing was never solved. Erik was a close friend of Tamerlan Tsarnaev, an obscure amateur boxer who would become infamous two years later as one of the Boston Marathon bombers. In her deeply-reported long form story in Boston Magazine, Zalkind argues that the marathon bombing might have been prevented if only the police had taken more interest in Tamerlan as a suspect in 2011.