Ex-Army medic, lover to be sentenced for his wife’s murder

HONOLULU — A former Army medic stationed in Hawaii is expected to be sentenced to about 30 years in prison Monday in the 2014 stabbing of his wife in a case involving porn, sex charges and a love triangle.

Michael Walker pleaded guilty to second-degree murder in September, about a week before his trial was scheduled to begin. He said he arranged for the woman with whom he was having an affair to kill his wife, Catherine Walker, while he was working in the emergency room at Tripler Army Medical Center in Honolulu.

Ailsa Jackson, who committed the killing, faces 30 to 33 years in prison when she is sentenced on Monday.

In 2015, Jackson pleaded guilty to murder, describing how she stabbed Catherine Walker and then waited a half-hour to make sure she was dead.

After meeting through an online dating site in September 2014, Walker told Jackson he was married and that his “deepest desire” was to have his wife gone, but he couldn’t divorce her, Assistant U.S. Attorney Tom Brady has said.

Walker told Jackson he couldn’t simply divorce his wife because of financial concerns and stood to receive $400,000 in life insurance, Brady said.

They plotted the killing in emails, in person and in text messages where they called each other “daddycakes” and “babygirl,” according to Walker’s plea agreement.

On Nov. 14, 2014, they met in a military reservation’s gym parking lot, where Jackson said she would kill Catherine Walker that night, Brady said. He described how the two came up with a text messaging code to let Jackson know whether she should enter the home through a window or use a key near the back door. If Michael Walker texted, “good,” that would mean use the window and “bad” would mean the key.

Walker texted “bad,” Brady said, and at about midnight Jackson walked to the Walkers’ house at Aliamanu Military Reservation and found the key, Brady said.

Jackson said in court she “went inside and grabbed a knife and went upstairs and stabbed her.”

In 2016, a military court found Walker guilty of child pornography charges that surfaced during the murder investigation.

In 2017, Walker was convicted of sexually abusing a child, physically assaulting a child, and wrongfully communicating a threat. He was reduced in rank from sergeant to private, sentenced to 10 years confinement, and received a dishonorable discharge, the Army said.