18 year old Eric Green of Brooklyn admits trying to kill a trooper patrolling downtown Albany's state government complex.

Authorities said Trooper Rodney Smith was working at the Empire State Plaza March 3 when he was approached by Green, who said he was new in town and needed help.

As Smith was checking Green's identity, Green stabbed Smith in the neck and ran off with Smith's radio after unsuccessfully trying to take his gun. Smith was released from a hospital two days later.

Green expected to be sentenced to 30 years in prison.