“Blood on Their Hands” is a memoir that journalist and podcaster Mandy Matney wrote after four years of reporting on Alex Murdaugh, his family, and their numerous related crimes. It details how she first became aware of the Murdaughs after Mallory Beach went missing as a result of the boat crash on Archers Creek, the mysterious death of Stephen Smith that many people felt was connected to the Murdaughs, the death of the Murdaughs’ housekeeper, and finally, the deaths of Paul and Maggie Murdaugh. With dogged reporting, Mandy Matney and a few other diligent South Carolina reporters would realize how everything led to the fact that Alex Murdaugh had been abusing narcotics and…