Federal officials have made an arrest following an investigation into a threat to police in New York City, according to a Homeland Security Investigations official.
“Homeland Security Investigations (HSI) was made aware of a threat to the law enforcement community here in New York City,” the official said in an emailed statement Friday. “As a result, HSI special agents investigated the threat and subsequently made an arrest. This investigation is still ongoing.”
Homeland Security Investigations is part of U.S. Immigration and Customs Enforcement, or ICE.
The official did not offer further details.
On Thursday, the NYPD Sergeants Benevolent Association union had tweeted that a “credible threat” had been received and advised all police officers “TO BE VIGILANT AND ALERT.”
On Friday, an NYPD spokeswoman said police “were aware of the threat and are on heightened alert as a result.”
The NYPD has been on high alert since Sunday when, police said, Robert Williams, 45, walked into the 41st Precinct station house in the Bronx, then opened fire on several uniformed officers and a civilian employee just before 8 a.m. After shooting Lt. Jose Gautreaux in the arm, Williams dropped his gun and surrendered.
The shooting came only hours after Williams, of the Bronx, ambushed a pair of officers sitting in a marked NYPD van with its lights flashing, police said. Bullets grazed the chin and neck of Officer Paul Stroffolino.
In court Monday, Bronx Assistant District Attorney Burim Namani said Williams, a parolee, told arresting officers that he committed the shootings because he was “tired of cops.”
Namani said Williams later told officers, “I am going to shoot one of you when I get out.”
Williams’ court-appointed attorney, Thomas Klein, did not return an email or telephone call seeking comment Monday.
Judge Joseph McCormack ordered Williams, who entered a not guilty plea, held without bail.
Williams has been indicted on 11 counts of attempted murder as well as attempted murder of a police officer, a judge announced Friday morning.