Aaron Mejia / Photo from Chicago Police
Mejia, 19, of the 2200 block of South Sacramento Avenue, was charged Sunday with one count of first-degree murder, police said.
Mejia and Perez were arguing when the stabbing occurred, police said. Perez family said the pair lived together.
Perez, 27, was found unresponsive in the home about 10 a.m. Thursday and was declared dead on the scene, according to the Cook County medical examiner’s office. An autopsy determined she died of multiple stab wounds.
Perez’ family said the couple had been dating for about three years.
Perez grew up in Chicago and had a 12-year-old daughter, her family said. She was currently working at a West Side clinic.
“She was very happy,” her mother Juanita Guerrero said. “She got along with a lot of people. She was very outgoing.”
Mejia initially fled, but was arrested Saturday, police said. He is expected to appear for a bond hearing Monday afternoon at the Leighton Courthouse in the 2600 block of South California Avenue.
— Michael Lansu, Homicide Watch Chicago Editor