Authorities said the suspect, identified as 46-year-old Perry Green, was charged with aggravated robbery with a deadly weapon and aggravated kidnapping.
ORIGINAL REPORT: Houston Methodist employee found stabbed in Texas Medical Center parking garage, police say
The stabbing happened just before 7 a.m. Monday, when HPD said the employee, who had just arrived at work, was found stabbed inside her car on the fifth floor of Garage 1 at TMC near Fannin Street.
As investigators combed the scene, the woman's cellphone was also missing.
The discovery prompted a lockdown for parts of the hospital's campus and a search for the suspect. The following morning, HPD released images of a person of interest and asked the public for help identifying him.
Green was arrested on Wednesday, according to a post made by HPD.
He is expected to make his first court appearance on Thursday, court records said.
This is a developing story and will be updated once more information becomes available.