Investigators say a Minneapolis police officer told authorities he was startled by a loud sound near the squad car he was driving moments before his partner shot and killed an Australian woman who had called 911.
A gunman opened fire on his fellow employees at a UPS facility in San Francisco, killing three people before turning the gun on himself. The shooting occurred just before 9 a.m. local time on Wednesday.
Authorities have announced "multiple fatalities" in suburban Orlando, the result of a gunman opening fire inside a local business. The shooter is among the dead.
The streets of Paris were the site of violence Thursday night, when a gunman opened fire on a parked police van, killing one officer and wounding two more.
Local authorities say two people were killed at an elementary school in San Bernardino, California. Two students were also wounded and taken to trauma centers.