Michael Democker/The Times-Picayune

New Orleans police shot and killed a man after a standoff that lasted nearly 12 hours.

The standoff started on June 3 after authorities say the man ran off Federal Emergency Management Agency workers who were talking with him about reclaiming his trailer.

Police say he placed his hand on his gun near his waistband, and ordered the workers to leave.

The man then locked himself into a neighboring home.

SWAT team members say the 49-year-old man fired at officers when they entered the home.

He was shot early this morning when he allegedly pointed his pistol at the officers.

The man's brother told police that he had been mentally ill for years.