Investigations revealed that he had been driving under the influence of alcohol. Moroso had been seen drinking several beers at a Cornelius, North Carolina lounge prior to the crash, and his blood alcohol level was found to be 0.22, over twice the then legal level of 0.10. He also had been convicted of speeding four times between 1987 and 1989, and had been involved in two prior highway crashes which included a rollover. Judges could have revoked his license at least twice but the charges were reduced.