Sadness and hope marked the seventh anniversary of the Sept. 11 terror attacks in New York City and around Long Island Thursday.

Thousands returned to Ground Zero to remember the 2,751 people lost in the attacks. Family members of victims read the names of their loved ones that perished that day. The ceremony at Ground Zero included people from more than 90 nations.

Hundreds of Long Islanders gathered at the water?s edge in Point Lookout. A replica of the twin towers was put up on the beach for the ceremony. The Hempstead High School choir sang while people reflected on that terrible day.

Meanwhile, Bellport students honored a former News 12 colleague Thursday. Glen Petitt died videotaping the terror attacks at the World Trade Center. Petitt, 30, was a photojournalist, a West Sayville firefighter and a New York City police officer. Petitt was last seen with a camera on his shoulder following firefighters into the World Trade Center.

For scenes of Sept. 11 memorials from around Nassau, as well as the complete Ground Zero ceremony, go to iO Extra, Channel 612 on your iO digital cable box.

Footage of Ground Zero ceremony in NYCFootage of Point Lookout ceremonyFootage of students honoring Glen PetittFootage of memorial ceremony in Deer Park