Airbnb Inc banned "party houses" after five people were killed in a shooting at a large Halloween gathering inside a rental home in Northern California that was advertised on the online listing service. Police were still searching for the shooter who opened fire on Thursday night at the costume party, which authorities say was attended by more than 100 people at the house in Orinda, less than 20 miles (30 km) east of San Francisco.

Airbnb Inc banned "party houses" after five people were killed in a shooting at a large Halloween gathering inside a rental home in Northern California that was advertised on the online listing service. Police were still searching for the shooter who opened fire on Thursday night at the costume party, which authorities say was attended by more than 100 people at the house in Orinda, less than 20 miles (30 km) east of San Francisco.