Paramus, N.J. -- 7:30 a.m. Tuesday: Authorities don't believe a gunman who killed himself after causing a lockdown at New Jersey's largest shopping mall wanted to hurt anyone.
Bergen County Prosecutor John Molinelli tells ABC's "Good Morning America" that 20-year-old Richard Shoop went into the Garden State Plaza Mall with the intent that he was not going to come out alive.
The prosecutor says Shoop left an ambiguous note with his family. While the prosecutor would not call it a suicide note, Molinelli says it did "express that an end is coming."
The Teaneck, N.J., resident's body was found in a back corridor on the lower level of the mall in Paramus early Tuesday.
1:25 a.m. Tuesday: A Bergen County official says a search is under way inside a northern New Jersey mall for a suspect who fired multiple shots just before closing time.
Bergen County spokeswoman Jeanne Baratta tells The Associated Press that authorities believe the suspected shooter is still in the Garden State Plaza Mall early Tuesday. She says SWAT teams are concentrating their search in the northeast corner of the 2.2-million-square-foot mall, near a Nordstrom store.
Paramus Mayor Rich LaBarbiera says the mall remains in lockdown.
Baratta says reports of shots being fired came in shortly before Monday night's 9:30 p.m. closing time at the mall, one of New Jersey's largest and most popular.
10:00 p.m. Monday: New Jersey police are responding to an "active shooter" alert after shots were fired at the Garden State Plaza Mall at about 9 p.m. this evening, authorities say.
The mall has been evacuated and a Bergen County spokeswoman confirmed that SWAT teams are responding to the area around Nordstrom at the mall in Paramus, N.J., about 25 miles west of New York City.
County spokeswoman Jeanne Baratta said the first call came in shortly after 9 p.m.: "Gunman inside the mall."
"I saw like 20 police officers running with what looked like machine guns, just running into the mall," an unidentified witness told ABC News Radio.
There have been no reported injuries at this time.
Initial reports had a witness saying they saw a shooter wearing all black and carrying a gun, a federal law enforcement source said.
This is a breaking news story. Check back for updates.