A Dallas man has been arrested near the White House after allegedly making suspicious remarks.
The Secret Service arrested Michael Arega on Nov. 6, after he was suspected of threatening to kill "all white police" there, CNN reports.
Arega's ex-wife alerted police from her home in Texas, according to Montgomery County Police spokesman Capt. Paul Starks.
She called police when she had discovered "troubling messages" on his Facebook page. Starks said she was concerned about her ex-husband's mental health, and that he had stopped taking his prescribed medications.
At about 2:55 p.m., the Montgomery County Police Department alerted the U.S. Secret Service that the man planned to go to Washington with the purpose of killing officers at the White House, according to a statement by the Secret Service.
At approximately 4:05 p.m., Secret Service officers located Arega on Pennsylvania Avenue near Lafayette Park, where he was "immediately detained by Secret Service Uniformed Division Officers and subsequently arrested without incident," the statement said.
The suspect was officially charged with making felony threats, and was not armed with a weapon at the time of his arrest.
Since 2014, there have been at least 22 security breaches at the White House or U.S. Capitol, according to a study by WNBC, which researched four years of federal court records to compile the list.
Almost all of those arrested since 2014 are free from custody, and at least two of them are being sought by law enforcement, it was discovered.
At least two of the incidents since 2014 resulted in gunfire from law enforcement, risking the lives of the many innocent bystanders.
Several people arrested for breaches since 2014 were repeat offenders. Marci Wahl, for example, is accused of trying to jump the White House fence three times in one week in March.
Judges ordered mental health screenings or counseling in 15 of the 22 security breach cases, including several still pending in D.C. federal court.
Former Secret Service agent Robert Caltabiano believes a hostile political culture, combined with social media, is fueling anger and protest.
"Unfortunately, I think we're going to see more of this," he said. "The vitriol, the fighting of people just going to events. If you look at how people view Congress and the president, I think there's the angst of people are so fed up with certain things."
Kenneth Kohl, deputy chief of the national security section for the U.S. Attorney's Office for the District of Columbia, said federal prosecutors vigorously prosecute breaches. "We take the cases very seriously," Kohl said. "If someone jumps the White House fence or attempts to jump the White House fence, were going to prosecute that case."