The man who gunned down five people at Northern Illinois University (NIU) in a suicidal rampage became erratic after halting his medication, authorities said today.

The former student who gunned down five people at his old US university in a suicidal rampage had recently “become erratic” after halting prescribed medication, it emerged today.

Another person shot when a suicidal gunman opened fire at an American university has died, bringing the toll to six.

A gunman dressed in black killed five students before committing suicide in a shooting spree at Northern Illinois University.

A gunman opened fire in a lecture hall at Northern Illinois University today, injuring at least 17 people before he killed himself.

A gunman opened fire in a lecture hall at Northern Illinois University today, injuring as many as 15 people, authorities said.