Throughout the 1970s , litigation teams utilized this budding concept of trial consulting to impact their outcomes , including the Joan Little criminal trial , the Angela Davis trial , the Wounded Knee trials , trials stemming from the Attica prison riots , the trial of Mark David Chapman ( John Lennon 's assassin ) , Vietnam Veterans Against the War , Vietnam veterans against the manufacturers of Agent Orange , the trials of Attorney General John Mitchell and defendant Maurice Stans ( Watergate ) , and Colombian drug lord Carlos Lehder , among others . In a majority of these cases , the verdict favored the side which used a trial consultant . This led to a heightened interest in standardizing practices for the burgeoning field of study
assassin
Murder of John Lennon
American Society of Trial Consultants