The explosion at an Aliso Viejo medical building was an "intentional detonation," and the explosive device was delivered to the building, addressed to a specific person, federal sources tell the NBC4 ...

ALISO VIEJO, Calif. -- Officials believe the explosion that killed a 48-year-old woman in Aliso Viejo was no accident, and that the blast came from a device delivered to the location. Speaking at a ...

Her ex-boyfriend and business partner, Stephen Beal, was later found guilty of building and planting the bomb and sentenced to life in prison During his sentencing, United States Attorney Martin ...

Authorities on Wednesday are working to determine whether a deadly explosion that took place at a medical office building in Aliso Viejo the previous afternoon was intentional. One woman was killed ...

LOS ANGELES (AP) — Federal and local investigators searched through debris, looking for remnants of a possible explosive device, after a blast at a Southern California medical office building that ...