CHICAGO -- Authorities in Chicago say a 24-year-old woman has been charged with murder afterwith her car after an argument.
Chynna Stapleton faces first-degree murder and is expected in court Monday. It wasn't immediately clear if she has an attorney.
Police say the incident happened around 11 p.m. Friday on Chicago's South Side. The Cook County medical examiner says 18-year-old Tatyanna Lewis died from multiple blunt force injuries. Her death was ruled a homicide.
Authorities allege that after an argument, Stapleton got into a 2002 Jeep Liberty and chased Lewis onto a sidewalk and then pushed her into a tree with the car, ramming her multiple times.
One friend of Lewis said he immediately ran to his friend's aid and checked her pulse, but she was unresponsive. He said the altercation escalated from a Facebook argument.
"The victim and her boyfriend was visiting and I guess the other girl, out of jealousy and envy, followed them over here and it escalated over Facebook from my understanding," he told CBS Chicago.
Stapleton was arrested later Friday evening after she was identified as the Jeep's driver.