San Bernardino County sheriff's deputies received a call at midnight regarding a shooting in the 61000 block of Alta Vista Drive.
They arrived and found Christy Phipps, 35, dead of a gunshot wound. Deputies interviewed Phipps' husband, Joseph Phipps, and then arrested him.
He was booked into West Valley Detention Center in Rancho Cucamonga on suspicion of the killing.
Anyone with information may call sheriff's homicide investigators, 909-387-3589 or WeTip, 800-78-CRIME.
Reach Melissa via email or call her at 909-386-3878.
Get the latest crime and public safety news on Twitter @IECrime.