Money disputes can often lead to violence, but it's rare that someone dies over $20.
Kayla Henriques was arrested Tuesday morning in connection with the incident, according to NBC New York. The body of 22-year-old Kamisha Richards, Henriques' alleged stabbing victim, was found near her home at the Cypress Hills Houses Monday night.
She had been stabbed in the torso. Attempts to save her were unsuccessful, and she was pronounced dead at Brookdale hospital.
Henriques is being held by police pending charges of second-degree murder and criminal possession of a weapon. She is the 18-year-old sister of the Richards' boyfriend, according to CBS.