Testimony ends in penalty phase of police ambush killer

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Testimony has ended in a hearing to determine whether a gunman gets the death penalty or life without parole for ambushing two Pennsylvania troopers at their barracks.

A jury is expected to begin weighing the sentence for Eric Frein (freen) after closing arguments Wednesday afternoon.

Frein killed Cpl. Bryon Dickson II and critically wounded a second trooper in a 2014 ambush. He was convicted last week.

A law professor told jurors Wednesday that inmates doing life can earn substantial privileges for good behavior, letting them take advantage of prison recreational and work opportunities.

Prosecutors played a jailhouse phone call in which Frein's father told his son the defense strategy would be to portray him, Eric Frein's father, as a "nut job."

The defense says Frein should get a life sentence.