HONOLULU (HawaiiNewsNow) - An Army medic accused in a deadly love triangle could be facing simultaneous civilian and military criminal cases.
Now, the Army is also considering a court-martial on additional charges of possessing child porn and prostitution.
Walker recently had an Article 32 hearing, the military's version of a preliminary hearing, to determine if he should face a court-martial for the additional crimes.
Attorney Kevin O'Grady, who specializes in military trials, says the court martial could result in the Tripler Army medic being kicked out of the military more quickly.
"Even if he was convicted of murder, he would have to be administratively separated," he said.
O'Grady says if they court martial him, he could dishonorably discharged.
Walker's wife, Cathy, was found stabbed to death in the couple's home on the Aliamanu Military Reservation in 2014. As Hawaii News Now first reported, Walker was having numerous affairs.
One of Walker's lovers, Lisa Jackson, admitted to stabbing Cathy Walker multiple times with a kitchen knife, and then waited in the couple's bedroom until she stopped breathing.
Jackson testified in court that Mike Walker was at work at the time of the killing, but that he left her a key so she could sneak in. She says he told her they could be together after his wife's death.
Jackson pleaded guilty for her role in the killing.
Mike Walker's federal trial for murder and conspiracy to commit murder is set to begin in August. O'Grady says an Army judge advocate should make a decision on the court martial hearing soon, after reviewing the allegations.
Walker reportedly admitted to being a sex addict. He was allegedly advertising online for sex from women and men, and would get paid for some of the encounters.
O'Grady says the federal and military trials would be conducted very differently.
"The burden is the same in that you need proof beyond a reasonable doubt. However in the military, they have what they call panels as opposed to a jury and there, the vote need not be unanimous," he said. Instead, a majority would be enough to convict.