Kamisha Richards, 22, died after being stabbed in the chest with a steak knife Monday night inside an apartment in the east New York neighborhood of Brooklyn, police said.
Kayla Henriques, 18, was arrested early Tuesday and charged with second-degree murder and criminal possession of a weapon, police said.
Investigators are still trying to determine what exactly happened between the two young women, who were described as lifelong friends. Richards was dating Henriques' brother, Ramel.
About three days before the stabbing, the two women had gotten into a dispute that started with a $20 loan, according to The New York Times. Richards had lent her friend the money so Henriques could buy Pampers for her 11-month-old son, but Richards became furious when she found out that Henriques had spent the cash on something else, the report said.
Over the weekend, the argument escalated via Facebook comments and text messages.
"U don't do
Henriques replied, "Dnt try to expose me mama but I'm not tha type to thug it ova facebook see u wen u get frm wrk."
The argument continued, and at 8:52 p.m., Richards said, "Ima have the last laugh," to which Henriques replied: "We will see."
Roughly 24 hours after the last message was posted, Richards reportedly went to Henriques' apartment and confronted her about the money. The argument began in the kitchen and continued in a bedroom, where Richards was stabbed, police said.
Richards stumbled out into a hallway, where she was found by one of Henriques' relatives.
"She wasn't panicking," the relative told the New York Daily News. "She was calm. I called the ambulance and put pressure on [the wound]. I did everything I could to try to save the girl."
Investigators reportedly found the steak knife at the crime scene and followed a blood trail to a neighboring apartment building, where Henriques was arrested.
"We are very saddened by this tragic situation, and our thoughts and prayers are with Kamisha's family and friends," JPMorgan Chase said