Let me add on a little here.

"Those who took a life without justice will become just ice ice ice"

The ninth (bottom) circle of hell is Cocytus, where the treacherous are sent. It's a frozen lake.

Those who betray other men are frozen up to their shoudlers.
Those who betray their countries (treason) are frozen up to their chins.
Those who betray their guests are frozen up to their eyes.
Those who betray their God are completely submerged in ice.
Satan is in the middle of the lake, frozen up to his waist.