The Army medic in Honolulu accused of conspiring with his lover to kill his wife met the other woman online, a federal prosecutor said Monday.

A judge ordered Sgt. Michael Walker held without bail Monday. Walker was arrested last week after an indictment alleged he and Ailsa Jackson plotted Catherine Walker’s murder and discussed making it look like a burglary while he would be at work at Tripler Army Medical Center.

Catherine Walker was found stabbed to death nearly a year ago in the Honolulu military housing home she shared with her husband.

In April, Jackson was arrested in Indiana, indicted and extradited to Honolulu. She pleaded not guilty, but according to court records filed after Michael Walker’s arrest, she will plead guilty on Nov. 20.

Walker pleaded not guilty last week. During his bail hearing Monday, defense attorney Birney Bervar tried to argue that Walker could be released and put on 24-hour electronic monitoring.

Walker has known about the investigation for about a year and has remained in Hawaii, Bervar said, adding that if his client planned to flee he’s had ample opportunity to do so.

Monitoring can only keep tabs on where Walker is, but not who he’s communicating with, Assistant U.S. Attorney Jill Otake said. Walker met Jackson online and communicated with her online, Otake said.

"He has nothing to lose by fleeing," Otake said. "He’s extremely manipulative."