Alex Murdaugh brother John Marvin Murdaugh testifies: full video

John Marvin Murdaugh, the brother of Alex Murdaugh, testified in Alex's double murder trial. John Marvin told the court about the night of the murders and his brother's drug addiction. Follow us on Twitter: @WLTX Follow us on Facebook: @WLTXNews19 Check out our website: WLTX.com #alexmurdaugh #murdaugh