The former boyfriend of a woman found fatally stabbed inside an Upper Manhattan apartment building on Monday morning has been charged with her murder, police reported Tuesday.

Luis Marquez, 41, of the Bronx was booked on murder charges in the death of 47-year-old Carmen Lopez, who was discovered mortally wounded near the third-floor elevator of 409 West 129th St.

A building cleaner came upon Lopez lying by the elevator after having been stabbed as many as 18 times, according to violence interrupter Iesha Sekou, who spoke with amNewYork after the killing.

Lopez was rushed to Mount Sinai Morningside Hospital in critical condition. However, cops said, she later succumbed to her injuries.

Sources familiar with the incident allege that Marquez had waited for hours to attack Lopez inside the

See Full Page