The family of a Texas pediatrician has filed a lawsuit against the management company that owns the apartment complex where she was fatally stabbed last October, claiming it could have done more to prevent her death.

The lawsuit against Knightvest Management says the Dallas-based company was neglectful in protecting Dr. Talat Khan, 52, who was killed Oct. 28 while sitting in the common area of the apartment complex in Conroe, north of Houston.