life sentence
life imprisonment

Because the best I can do is murder one with life imprisonment.

He's not likely to scale it back to life imprisonment.

The sentence was later changed to one of life imprisonment.

He is serving a term of life imprisonment in Washington.

She was arrested in 1932 at the age of 16 and to life imprisonment.

The maximum is life imprisonment, but the average in the 1980s was four and a half years.

However, the father's sentence was changed to one of life imprisonment.

He was sentenced to life imprisonment and a fine of $10,000.00.

He was sentenced to life imprisonment and died in 1998.

In Russia he'd come close to life imprisonment for murder.