The self-described "anti-feminist" lawyer, suspected of fatally ambushing a federal judge's family in New Jersey, flew to California earlier this month and left immediately after he fatally shot a male rights lawyer in Crestline.
Roy Den Hollander, 72, from New York, was confirmed as a suspect in the murder of 52-year-old Marc Angelucci on July 11 at his home, the San Bernardino County Sheriff Department said in a press release.
According to official information, new surveillance images are moving before and after the shootout through southern California train stations.
Investigators believe Den Hollander arrived at San Bernardino station on July 7 and rented a car. Four days later, he drove to Angelucci's house in Cedar Pines Park and killed him.
The Hollander immediately fled into the rental car, drove to Union Station in Los Angeles and left California from there.
The Hollander was found dead on July 20, a day after the ambush in which US District Judge Esther Salas' 20-year-old son was killed and her husband wounded. Salas was in another part of the house and intact.
Investigators said Wednesday they had evidence that the New Jersey shootings linked the lawyer Marc Angelucci's death on July 11 in San Bernardino County, California.
In both the California and New Jersey attacks, the suspect appeared to pretend to be a delivery driver, a police officer previously told the Associated Press. The officer was unable to publicly discuss an ongoing investigation and spoke to the AP on condition of anonymity.
The Hollander filed lawsuits against the constitutionality of "ladies night" promotions in bars and nightclubs, Columbia University sued for providing women's study courses, and sued news organizations for biased reporting.
Den Hollander Salas and other judges had sharply criticized the more than 2,000 pages of often misogynistic, racist writings that were published online.
He also wrote that he wanted to use the rest of his time on earth to "balance the score" with his perceived enemies by using "cowboy justice".
The Hollander and Angelucci were involved in separate legal proceedings to force the US government to oblige all young women to register with men for a possible military draft.
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