A federal judge in Chicago has found a tugboat captain involved in a deadly 2005 explosion guilty of negligent manslaughter.
In a news release, the U.S. attorney's office says Dennis Michael Egan of Topeka, Illinois, faces a maximum sentence of 10 years in prison and a $250,000 fine when he is sentenced in September.
Judge James Zagel also found Egan and the Lemont company owned by a family member he worked for guilty of misdemeanor oil pollution of a navigable waterway.
During the trial, prosecutors contended Egan allowed deckhand Alex Oliva to use a propane torch to unfreeze a cargo pump. That, they say, set off an explosion that killed Oliva, sank the barge and dumped 600,000 gallons of oil into the Chicago Sanitary and Ship Canal.