An elderly Brooklyn woman was arrested after allegedly beating her roommate to death at their New York City nursing home.

Galina Smirnova, 95, was jailed without bond at Rikers Island on Friday, Sept. 19, on charges of second-degree murder and possession of a criminal weapon, New York City court records show.

Smirnova had been admitted to the Seagate Rehabilitation and Nursing Center on West 29th Street in Coney Island, according to New York City Criminal Court documents obtained by USA TODAY.

Per an arrest affidavit, New York City police officers responded to a 911 call at the nursing facility at 10:27 p.m. on Sunday, Sept. 14, and found Nina Kravtsov, 89, suffering from head trauma.

A bloody wheelchair footrest pedal found

Detectives' preliminary investigation found that an employee checked on Kravtsov in the room she shared with Smirnova at 8:55 p.m. on Sept. 14, and the 89-year-old was asleep in bed.

An hour later, when the employee returned for the welfare check, she saw Kravtsov in her bed, covered in blood "with gash marks about her face and head."

The employee also found Smirnova covered in blood, washing her hands in the unit's shared bathroom, according to the affidavit. The employee told officers she noticed footrest leg pedals had been removed from a wheelchair inside the room, with one on the floor covered in blood, and the other outside on the ground under a window.

Kravtsov was taken to a hospital, where she died the next morning as a result of blunt force trauma, the affidavit continues.

Police did not share a motive for the killing in the court document or when contacted by USA TODAY.

Video footage leads to Galina Smirnova's arrest

Police arrested Smirnova after detectives saw video surveillance showing no one else entering or leaving the room between the time the employee checked on Kravtsov when she was alive, until she was found fatally wounded.

The New York City Clerk's Office said a local public defender is representing Smirnova in this case. USA TODAY contacted the public defender's office on Friday, Sept. 19, but has not received a response.

Smirnova's next court date had not been scheduled as of Sept. 19, court records show.

Natalie Neysa Alund is a senior reporter for USA TODAY. Reach her at nalund@usatoday.com and follow her on X @nataliealund

This article originally appeared on USA TODAY: 95-year-old woman charged with murder of roommate at New York nursing home

Reporting by Natalie Neysa Alund, USA TODAY / USA TODAY

USA TODAY Network via Reuters Connect