Parental Abduction Turns Violent

March 26, 2016


The Sheriff’s Department is requesting the public assistance in locating a six-month-old infant, the child’s biological mother and the maternal grandmother after an unscheduled visitation turned violent on Thursday.


In a statement to The Alpenhorn News by a Sheriff’s Department spokesperson, it was reported that Diana Cox, 30, resident of Crestline, and her mother, Isabel Scheif, 61, resident of Rancho Cucamonga, allegedly forced their way into the residence of the paternal grandmother in the 23000 block of Zurich Drive, Crestline. After forcing their way into the residence, the paternal grandmother, who was babysitting at the time, was assaulted and a six-month-old infant was forcibly removed from the home.

The Sheriff’s Department spokesperson told The Alpenhorn News that Cox and the infant’s father are currently separated and in a custody dispute. The Sheriff’s Department spokesperson said a custody hearing is pending but did not release the date. The Sheriff’s Department reported that currently, there is no court order to determine who has custody of the infant and the only information released was that the father had custody pending the hearing.

Shortly after 1:30 p.m. on May 10, Cox and Schleif were alleged to have arrived at the assault victim’s residence on Zurich Drive, Crestline, with Schleif reportedly knocking on the door. When a visiting family friend answered the knock, Schleif reportedly made a request that they wanted to visit the infant. The witness reportedly refused, stating that he did not know who they were, but that he would summon the grandmother for them. The two suspects waited outside while the witness walked downstairs to summon the paternal grandmother, and then stayed with the infant while the victim went to the front door.

When Cox and Schleif made their request to visit, the victim said she did not think it was a good idea at this time, since a custody hearing was approaching. Cox is alleged to have rushed inside the residence and started to assault the 63-year-old disabled woman, threw her to the floor and then continued into the house. While Cox ran downstairs, Schleif is alleged to have forcibly held the disabled victim down on the floor.

According to the witness, Cox rushed into the bedroom where the infant was laying in a crib, pushed the startled witness out of the way, grabbed the infant and ran back upstairs. According to the female victim, the two suspects ran from the residence, jumped into Cox’s vehicle and, with Cox allegedly driving and holding the unrestrained infant in her lap, left at a high rate of speed, reportedly running stop signs as they left.

The Sheriff’s Department spokesperson told The Alpenhorn News that the disabled female victim sustained bruises, scratches and contusions during the assault.

As of The Alpenhorn News’ press deadline, the suspects have not been located. The Sheriff’s Department reported that they have obtained arrest warrants for both Cox and Schleif, charging violation of California Penal Code (PC) Section 278.5, (child abduction), violation of PC Section 273a(a), (willfully placing a child in circumstances that endanger their person or health is endangered) and violation of PC Section 236, (unlawful imprisonment). While the exact bail of the warrant was not released, according to the San Bernardino County Uniform Bail Schedule, bail appears to be $100,000.

The Sheriff’s Department requested that the photographs of the two suspects be published to aid in the public’s assistance in locating the two suspects, but as of The Alpenhorn News’ press deadline, those photographs have not been received. The Sheriff’s Department did report that Cox’s vehicle is described as a black 2001 Jeep Cherokee with a California License of 4UQW913.

The Sheriff’s Department cautions anyone who encounters either of the two suspects not to approach the suspects if seen, but to call the Sheriff’s Department or 911. Anyone having information regarding the whereabouts of Cox, Schleif or the six-month-old infant, is urged to contact the Twin Peaks Sheriff’s Station at (909) 336-0600. Callers wishing to remain anonymous are urged to call the We-tip Hotline at 1-800-78-CRIME (27463) or you may leave information on the We-Tip Hotline at

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