The gruesome discovery was made around 1:30 p.m. Wednesday inside the M.N.I Security Specialist Inc. building at the intersection of East 233rd Street and Bronxwood Avenue in the Wakefield section.
The 45-year-old victim, later identified as security guard Wanda Rios, was found with a stab wound to her neck. Authorities say a screwdriver was found at the scene.
Rios was rushed to Montefiore Medical Center where she died.
Police say they are searching for 45-year-old Idris Abdul-Muhaymin in connection to the incident.
Authorities say Rios and the suspect knew each other, but he was not a coworker or former coworker, and they were not romantically involved.
Police say Abdul-Muhaymin is the same suspect wanted for fatally stabbing his elderly uncle who had just won $50,000 in the lottery.
Owen Dillard, 73, was found dead in his apartment in June.
Both victims, the security guard and the lottery winner, lived only a few blocks apart.
Police say the motive in Wednesday's fatal stabbing remains unclear.
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