12:55 p.m.

AUGUSTA -- Steps John A. Okie took to conceal his killing and his behavior in the six days between committing the two homicides helped convince a psychiatrist that Okie knew that killing was wrong.

Dr. John Young, a forensic psychiatrist from Middlebury, Vt., testified today that Okie, 22, also told him that he knew killing Alexandra "Aleigh" Mills, 19, of Wayne was wrong when he did that on July 10, 2007.

However, Okie also told Young that he believed killing his father, John S. Okie, 59, in the family's Newcastle home on July 16, 2007, was right.

Young, who was hired by the State Forensic Service to evaluate Okie, testified today in Kennebec County Superior Court where Okie's double murder trial is in its sixth day.

Prosecutors say Okie was aware of his wrongdoing in spite of earlier diagnoses of forms of paranoid schizophrenia.

Defense attorney Peter DeTroy maintains Okie was too severely mentally ill to realize the wrongfulness of his behavior.

Young said that Okie told him that after bludgeoning Mills with a broken baluster, he returned to her house, slit her throat and took her cell phone to cover up his 2:13 a.m. phone call to her.

Young said Okie told him, "I wanted to make it look like it could be anybody."

Okie then went to work later that same morning, went to a movie and then played pool with friends.

Young said Okie told him that "Cubans dressed in invisible suits using nanotechnology wanted me to kill her. It was part of my mission."

Young said Okie planned his father's killing because he believed his father was going to kill a woman with whom the younger Okie was enamored.

Okie, who had been arrested early on July 16, 2007, for driving and alcohol offenses, refused his father's request to pick his mother up at work that evening.

"He waited for his dad in the house," Young said. "He had a knife in his pocket and drank some wine and smoked marijuana. There was a physical struggle, and he sat on his father's stomach and slit his throat."

Young said Okie told him in late February 2008, "I was doing the right thing. I was helping the side that was good."

Okie then tried to conceal his guilt, Young said, by taking a shower to clean his bloodied hands, and suggesting to police shortly after his father's body was found that the killer might be a former employee.

Karen Okie, the defendant's mother and the widow of John S. Okie, will resume her testimony later today, Justice Joseph Jabar told jurors this morning.

10:17 a.m.

AUGUSTA -- A psychiatrist hired by the state maintains John A. Okie was not suffering from psychosis when he killed a former girlfriend and his father in a six-day period in July 2007.

Dr. John Young, who worked for the state forensic service when he evaluated Okie in Feb. 2008, said there are more plausible reasons Okie committed the killings. Young said Okie took steps to plan both homicides and then took steps to hide his role in both.

Okie is on trial in Kennebec County Superior Court on charges he murdered Alexandra "Aleigh" Mills on July 10, 2007, and his father, John S. Okie on July 16, 2007.

His mother, Karen Okie, will continue her testimony later today.