MILWAUKEE -

A wounded Iraq war veteran who killed his wife while she was on duty as a Wauwatosa police officer on Christmas Eve will get a life sentence on Friday.

But Benjamin Sebena's lawyers say he should at least get a chance for parole.

The Milwaukee Journal Sentinel reports they appealed for leniency in a sentencing memorandum Tuesday that details the effects of his combat experience, including a claim to have killed 68 people.

The memo also suggests Sebena believes he killed his wife, Jennifer Sebena, so she'd go to heaven, fearful she'd take her own life if he committed suicide first.

Sebena tried to pursue an insanity plea, but doctors said his condition did not support it, though he suffered from post-traumatic stress disorder and a traumatic brain injury.