Prosecutors said they will seek the death penalty against the man accused in last year’s cinema attack that killed 12, wounded 70, and spurred new gun control laws in Colorado.

Prosecutors in the US are expected to file formal charges against the student accused of killing 12 people and injuring 58 others in a cinema gun rampage.

The man accused of the shooting spree at a Colorado screening of the new Batman film posted a notebook detailing his plans to a psychiatrist just days before the attack, FoxNews.com yesterday reported as the first funeral was held for one of the 12 people killed.

The man accused of killing a dozen people in a Colorado movie theatre during a showing of the new Batman film made his first appearance in court, sitting silently in a red jailhouse jumpsuit and with his hair dyed bright red.