A man who is serving a one-year jail term for sexually assaulting a woman on Oahu was sentenced Aug. 23 to another one-year jail term for sexually assaulting another woman while she was on Maui for a fishing tournament.

Alan Yuen, 59, of Honolulu was placed on five years’ probation as part of his sentence imposed Aug. 23.

He had pleaded no contest to third-degree sexual assault.

The sexual assault occurred Oct. 30, 2017.

Speaking in court Aug. 23, the woman said Yuen locked the door to a condominium after making sure she was alone, then he cornered her in the kitchen area. “He grabbed my breast and twisted and pulled,” she said, shaking. “I’ve never felt such pain.”

She said she managed to get away and went outside to the parking lot and texted her friends. “He may not have raped me with penetration, but he raped me emotionally and psychologically,” she said. “The trauma has pretty much caused permanent damage.”

Two other counts of fourth-degree sexual assault were dismissed after the defense said an essential element wasn’t included in the charge.

The woman said those charges were for groping her on previous days on the fishing boat of which Yuen was captain.

“When he assaulted me on the boat, I actually looked over and was wondering if I could swim to the island,” she said.

“He’s taken many things away from me. I used to be strong and passionate and energetic with a drive to fulfill goals. Now, a good day for me is waking up and answering a couple of emails.

“Not only has he ruined my favorite hobby, but my social anxiety has led me to alienate a lot of my friends.”

She asked for the maximum sentence for Yuen. “The longer he is incarcerated, the fewer women he can add to his list of victims,” she said.

Deputy Prosecutor Karen Droscoski said doctors, probation officers and other professionals have described Yuen in terms such as “deceptive, difficult, uncooperative, argumentative, hostile, intimidating, narcissistic” and “a sex abuser in denial.”

“Unless the defendant corrects his irrational thinking and gains control of himself, he will reoffend,” Droscoski said. “The defendant has continued to reoffend over the course of 18 years.”

Before Yuen changed his plea, the prosecution sought to introduce evidence at trial about Yuen’s “acts of groping numerous women” while they were on the dock or fishing or cruising on Yuen’s boat in waters off Oahu and Maui from 2013 to 2017, according to a notice filed in court.

The notice said that from 2013 to 2018, Yuen “has been prevented from frequenting, or being present at certain Honolulu harbors or yacht clubs due to his inappropriate sexual touching of women.”

Yuen grabbed the left breast of an Uber driver at the end of a ride at about 2 a.m. April 8, 2018, in Kailua, Oahu, according to the notice. Yuen also grabbed the right breast of a nurse while she was doing a blood draw Jan. 27, 2000, in Honolulu, the notice says.

“The only way to stop him is a jail sentence,” Droscoski said.

Both she and Deputy Public Defender Tyler Stevenson asked the court to follow a plea agreement recommending the one-year jail term as part of probation for Yuen.

He said the agreement was reached just before trial was set to begin through “tireless efforts” by attorneys.

Yuen, who has a college degree, was married, has three children and was working as a mechanical engineer before he suffered a mental breakdown in 1994, Stevenson said.

He said Yuen was 34 when he had his first contact with the criminal justice system in 1995.

Other contacts followed. In 2010, Yuen was sentenced to a five-year prison term for 11 counts of first-degree terroristic threatening, court records show.

Stevenson said Yuen’s mental health issues were a factor.

“He has a condition that I don’t think our society knows enough about yet,” he said. “What I do see is a person that can change, that can improve, that can return to who he was.”

“I know I can do better,” Yuen said in court.

“I take responsibility for this, and it will never happen again,” he said. “This will be guaranteed my last time I see you. If I ever have to come back here in front of you <\q>.<\q>.<\q>. you just shoot me.”

Yuen said he was taking care of his parents, who are in their 80s.

Second Circuit Judge Richard Bissen asked what steps Yuen had taken to make sure he wouldn’t reoffend.

“My wife is going to handle more of the women on the boat so this doesn’t happen,” Yuen said. “I’m going to be doing all of the driving on the boat.”

Bissen said a 2005 letter from a doctor who examined Yuen predicted the behavior he has since exhibited “if he doesn’t accept responsibility or get treatment.”

“So all the efforts that have been made from 2005 until now have led nowhere except a trail of more victims,” Bissen said. “He likes walking up to women and groping them. He likes exposing himself to perfect strangers, Uber drivers. He gets a thrill from that.

“He’s gotten away with it, so he keeps doing this.”

In his 2008 case on Oahu, Yuen was found guilty of fourth-degree sexual assault and was sentenced July 9 to a one-year jail term.

Judge Bissen ordered that Yuen serve the one-year jail term in the Maui case consecutively to the jail term in the Oahu case so he has a separate penalty for each crime.

Yuen was ordered to participate in the Hawaii Sex Offender Treatment Program and to have no contact with the victim. He also was ordered to participate in mental health treatment.