Oklahoma: 4 civilians killed in Tulsa hospital massacre; Anger over shootout

Another incident of mass shooting has rocked the United States. At least 4 civilians were killed after a heavily armed gunman stormed in Tulsa hospital in Oklahoma. According to the police, the gunman killed himself after the shootout. This is the latest string of deadly massacres in the U.S. President Joe Biden has been briefed about the incident. He vowed to clampdown on the gun culture in U.S. Watch this video to know more.