By Kim Minugh
A 29-year-old man is in custody after he allegedly sexually assaulted his girlfriend's two daughters, according to Sacramento police.
Detectives became involved late last year, after they were told that two girls had been sexually assaulted over a few years, starting when they were 9 and 10 years old, said police Sgt. Norm Leong.
A warrant was issued for the arrest of Omar Valdivia (photo left) and police arrested him Monday in Rio Linda, Leong said.
He was booked into the Sacramento County Main Jail on 15 counts of various sex charges, according to booking records.
He is being held in lieu of $5 million bail and is scheduled to appear in court Wednesday.
Call The Bee's Kim Minugh, (916) 321-1038.