Binghamton's mayor and police chief say a man who killed 13 people inside an immigrant community center was depressed after recently losing a job and angry that he couldn't speak English well.

Police Chief Joseph Zikuski tells NBC's "Today" show that people "degraded and disrespected" the gunman over his poor English. Mayor Matthew Ryan tells ABC's "Good Morning America" he was angry about his language issues and his lack of employment.

The suspected killer is believed to be a Vietnamese immigrant.

On Friday, he barricaded the community center's back door with his car and then opened fire on a room full of immigrants taking a citizenship class.