NEW CITY - The driver in the deadly Hudson River boat crash that killed two last summer appeared in court today.

JoJo John, of Nyack, maintained his not guilty plea to vehicular manslaughter and other charges. Prosecutors say John was under the influence of drugs and alcohol when he crashed a boat into a barge on the Hudson River that was being used for construction on the new Tappan Zee Bridge. Bride-to-be Lindsey Stewart and her fiance's best man, Mark Lennon, were both killed.

John's lawyer David Narain maintains that his client was safely driving the boat and only crashed into the barge because they weren't lit properly. "These barges were virtually invisible," says Narain. "Nobody could see them, including our client."

The U.S. Coast Guard says the barge was properly lit the night of the crash. Narain claims an investigation done by the Rockland County DA shows federal regulations weren't met, but DA Tom Zugibe says that claim is inaccurate.

John's lawyers requested more time from the judge to obtain further research in their case.