Honolulu Police say Saito took a taxi from Kaneohe to Honolulu then chartered a plane to Maui.
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They say from there, he boarded a plane to San Jose and arrived around 7:30 p.m. Sunday.
A spokesperson at the San Jose airport told ABC7 sister station KGO-TV that on Tuesday afternoon, "SJC's Security Officer assisted law enforcement officers from the FBI and US Marshal's Office in their request to review airport security footage. They reviewed all available footage relevant to their investigation."
Saito was committed to Hawaii State Hospital in 1981 after being acquitted by reason of insanity of the murder of Sandra Yamashiro. She had been shot and stabbed multiple times. Her body was found in her car at a Honolulu shopping mall.
Defense attorneys sought to have Saito released in 2000. But Jeff Albert, a deputy city prosecutor, objected... saying Saito "fills all the criteria of a classic serial killer."
In 1993, a court denied Saito's request for conditional release, saying he continued to suffer from sexual sadism and necrophilia.
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The 59-year-old is six feet tall and 220 pounds. He has black hair and brown eyes.
Saito is considered extremely dangerous and should not be approached.
If you have any information on Saito, please call police at (808) 244-6400 or call 911 in an emergency. You may also call the State Department of Public Safety Sheriff's Department at (808) 587-3623.
For more information about Saito, visit www.mauicounty.gov/civicalerts.