Police say Lisa Grier, 33, was found dead after a welfare check, and the suspect was later arrested in Manhattan in an unrelated taxi carjacking case.
MOUNT VERNON, N.Y. — A 33-year-old New York City Public Schools teaching assistant was found dead in her Mount Vernon apartment on March 21, and authorities say the man accused in her killing was arrested hours later after a taxi carjacking and crash in Manhattan.
Lisa Grier’s death has drawn attention across Mount Vernon, New York City schools and her church community as investigators work through a case that stretches from a Westchester apartment building to Lower Manhattan. Court records and police accounts say the suspect, identified in the homicide case as Joveair Brice, was already in custody on separate New York City charges while Mount Vernon authorities moved forward with a murder case. The immediate stakes are both legal and deeply personal: a family is preparing for funeral services, coworkers and students are mourning a school staff member, and police still have not publicly answered several questions about motive and the final hours before Grier was found.
Police were sent to Grier’s apartment on East Fourth Street on Saturday, March 21, for a welfare check, according to local reports. Officers found her unresponsive inside the home, and she was later pronounced dead. A felony complaint alleges she was beaten with a hammer and struck multiple times in the head. By the next day, the case had widened beyond Westchester. In Manhattan, police said a 53-year-old taxi driver was sitting in his cab around 12:30 a.m. near 450 W. 33rd St. when a man got in, displayed a firearm and took the vehicle. The cab was later tracked to Canal Street and Lafayette Street, where it crashed and police took a suspect into custody. Authorities identified that man in the city case as Joseph Ryce, while reporting tied him to the Mount Vernon homicide case under the name Joveair Brice.
The known record now centers on two names, one custody status and two sets of allegations. Mount Vernon court documents cited in local coverage identify the homicide suspect as Brice, 28. New York City police identified the taxi carjacking suspect as Joseph Ryce, also 28. Multiple local reports say authorities believe they are the same person. CBS New York reported that the suspect was being held at Rikers Island on charges tied to the alleged carjacking while an arrest warrant had been filed in the Mount Vernon homicide case. ABC7 reported the Manhattan charges include robbery, grand larceny, reckless endangerment, unlawful fleeing from police, criminal possession of stolen property, menacing, obstructing governmental administration and unauthorized use of a vehicle. Police have not publicly laid out, in detail, why the suspect used different names or whether prosecutors expect to address that issue in open court. They also have not publicly explained the sequence of events between Grier’s death and the Manhattan arrest beyond saying the arrest came in another jurisdiction.
Grier’s death has also landed hard in two communities where she was known less by the criminal allegations and more by her daily work and personal warmth. A New York City Public Schools spokesperson said the loss was deeply felt by colleagues and students, describing school staff members as vital to guiding and supporting children. The statement said mental health resources had been made available for students and employees. United Federation of Teachers President Michael Mulgrew said Grier was “truly special” and praised what he called her kindness and devotion to others. At The Grace Place NYC, members gathered around prayer and remembrance after learning of her death. Pastor Stephen Perumalla said the circumstances were shocking and described a congregation struggling to process the news. In one of the most personal details shared publicly, he said church members kept returning to the same memory: Grier “gave the best hugs,” a small detail that carried the weight of how she made people feel in ordinary moments.
Even with those public remembrances, major parts of the case remain unresolved in plain view. Authorities have said there is no threat to the public, but they have not publicly described any prior calls for service at the apartment, whether there were witnesses to the killing, or whether investigators recovered the weapon described in the complaint. It also remains unclear when the suspect will be arraigned in Mount Vernon on the homicide charge if he remains in custody on the New York City case. News 12 reported that police were waiting for arraignment in Mount Vernon criminal court before holding a fuller conference on the case. That means the public record is still developing in stages, first through initial police statements and complaints, then through courtroom filings. For now, the legal process appears to be moving on parallel tracks: one in Manhattan for the alleged armed cab theft and pursuit, and another in Westchester for the homicide investigation that began with a welfare check at Grier’s home.
The setting of the case has sharpened the sense of loss. East Fourth Street is an ordinary residential block, not a place people expect to see homicide investigators gathering after a wellness call. In church and school circles, the picture shared publicly of Grier is not one of headlines, but of routine service: a paraprofessional supporting students, a member of a congregation known for warmth, and a woman whose death left friends speaking in stunned, unfinished thoughts. Friend Jaema Younge told News 12 that Grier was “definitely a light that we’ll all miss.” That kind of language is common after a sudden death, but in this case it has become central to how people are trying to understand her absence. The case file describes violence. The people who knew her best have described care, welcome and kindness. Those two realities now sit side by side as the court process moves forward.
As of Friday, March 27, the suspect remained in custody on the Manhattan case while Mount Vernon authorities pursued the homicide matter. Funeral services for Grier are scheduled for April 4 in the Bronx, and the next major public developments are expected to come through court proceedings and any fuller police briefing.
Author note: Last updated March 27, 2026.