Last Updated May 16, 2018 3:50 PM EDT
LOS ANGELES — A deadly explosion at a Southern California office building is being investigated as a crime, and the woman killed is believed to be the owner of the business where the blast took place, according to authorities. The business operates as a day spa, said officials.
Speaking at a news conference Wednesday, FBI official Paul Delacourt said investigators do not believe the Tuesday afternoon blast in the city of Aliso Viejo was an accident.
“At this point, our working theory is that this explosion was caused by a device, and although the damage was extensive, there are some components that we have located at the scene that are inconsistent with what one might expect to find at this business,” said Delacourt, who joined officials with the Orange County Sheriff’s Department in releasing new details on the investigation Wednesday.
Orange County Undersheriff Don Barnes said the formal identification of the