Owyhee County Sheriff Perry Grant is asking for the public’s help in locating Desiree Vistercil’s cell phone.
On Nov. 28 or early Nov. 29, Vistercil killed her 16-month-old daughter, Mia Sage Allison, and then killed herself in her car parked in a remote area of eastern Owyhee County near the Snake River and Hammett.
A farm worker discovered the car about 10 a.m. Nov. 29.
Perry said initial investigation results indicate murder-suicide.
According to cell phone tower records, the last known location of Vistercil’s cell phone, a black LG G5, was about 10 a.m. Monday, Nov. 28, near Nampa’s Treasure Valley Marketplace, 16365 N. Marketplace Blvd.
“We don’t know if it was lost or purposely left,” Perry told the Statesman. “We have determined that her phone never left Nampa.”
Vistercil, who lived in Jordan Valley, Ore., was driving a brown 2005 Ford Focus with Oregon license plates.
Anyone who found the cell phone, or has information on Vistercil’s whereabouts on Nov. 28 and 29, is asked to contact Detective Jeff Wasson at the Owyhee County Sheriff’s Office, 495-1154.