Emily Rose Orbe, 32, has been charged with murder.
Homicide investigators say a violent fight inside the mall spilled outside and then into an adjacent parking lot.
Orbe allegedly chased her boyfriend just before 8:30 p.m. Monday in an SUV as he rode his motorcycle around the mall, located off of SH-249.
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At some point, the chase ended in a credit union parking lot beside the mall. Police say that's when Orbe pulled out a weapon and opened fire on her boyfriend, killing him.
The shooting caught the attention of not just mall security, but several witnesses who are being questioned by police.
On the scene of a shooting near #WillowbrookMall @houstonpolice say boyfriend & girlfriend were fighting inside the mall which ended up in an adjacent parking & with the woman shooting & killing the man. #ABC13 pic.twitter.com/PXlKznaAX9— Jessica Willey (@ImJessicaWilley) October 2, 2018
Police said the man died from his injuries. Orbe, who was arrested at the scene, was being checked out by EMS for minor injuries, described as cuts and bruises.
Authorities have not released the boyfriend's name.