Captain Meulenberg News Today

No mother should ever have to re-live the murder of their daughter every single day, but Maggie Zingman chooses to do so in an effort to find her daughter's killer.

A gunman armed with a rifle was also killed in the incident – the latest in a string of deadly shootings that have rocked the United States

Tulsa police said Michael Louis, 45, was determined to kill St. Francis Hospital surgeon Dr. Preston Phillips, who had performed back surgery on him weeks ago.

Man carrying a rifle and a handgun opens fire in a medical office building

The authorities said that the gunman was believed to have killed himself.