For refusing to testify or cooperate with authorities , he spent 110 days in jail for contempt of court .
After a publicized three - week trial , Holmes was acquitted of all criminal charges on June 26 , 1982 .
For refusing to testify or cooperate with authorities , Holmes spent 110 days in jail for contempt of court .
After a publicized three - week trial , Holmes was acquitted of all criminal charges on June 26 , 1982 .