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.

Under-pressure Liverpool boss Rafael Benitez went for an attacking line-up for his side’s vital Champions League Group A clash with pool leaders Porto.

Last season’s beaten finalists Liverpool were without midfielder Xabi Alonso, who has failed to recover from an ankle problem initially sustained at Portsmouth on Saturday, and aggravated last night in training at the Estadio Dragao.