Was her son at home alone overnight?
Has LE determined what time she left work? Was 5:30am the usual time for her to arrive home? Or did she make a stop before going home?
Was her phone recovered from the scene? Any phone calls or texts leading up to the shooting provide any clues?
BBM I have read that no one else was home at the time of the shooting. So I don't think so.
Edited to add article: Woman killed after leaving her job at gentleman's club, HCSO says | khou.com