Abigail Hernandez, a 21-year-old New York woman, was arrested for threatening to shoot students at East High School in Rochester, police announced at a press conference Friday.

According to Rochester Deputy Police Chief La’Ron Singletary, Hernandez — an illegal immigrant shielded from deportation by the Deferred Action for Childhood Arrivals program — made the threat on East High’s Facebook page on February 16, two days after the horrific mass shooting at Marjory Stoneman Douglas High School in Parkland, Florida.

BREAKING: RCSD student, illegal immigrant charged with making threat against East HS https://t.co/ODYyWFUYx6 pic.twitter.com/fWRGdZGMvs — 13WHAM (@13WHAM) February 23, 2018

Though East staff members reported the threat that day, police did not arrest Hernandez until February 20, as the threat was made through a fake Facebook account she created in January.

The threat from the fake account read, “I’m coming tomorrow morning and I’m going to shoot all of ya bitches.”

Upon searching Hernandez’s home, Rochester police officers discovered a shotgun.

Hernandez was charged with making terroristic threats. When asked by ABC, Rochester City School District officials could not answer why Hernandez, 21, was enrolled as a student.

“Sadly, in wake of the recent Parkland, Florida tragedy, schools across the country have been grappling with social media threats intended to instill fear and anxiety,” East High School superintendent Shaun Nelms said of the incident. “While we cannot comment on this particular police investigation around a threat made to East, I want to stress how fortunate we are to be part of a community in which the police department works closely with schools to ensure the safety of the entire school community.”

“We remain very grateful to the Rochester Police Department for their partnership and for keeping us well informed throughout the entire process. Their presence on campus last week and their guidance on how to best keep staff and students safe during this efficient, successful police investigation reiterates their ongoing support. As always, the safety of students and staff is our top priority.”

Rochester reaffirmed its status as a sanctuary city in January, despite threats from the Trump administration that the city could lose federal funding.

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