SACRAMENTO, Calif. (KCRA) —The white pickup truck belonging to a Cal Fire battalion chief suspected of killing his 26-year-old fiancee has been found in Elk Grove.

But 55-year-old Orville Fleming remains at large, according to the Sacramento County Sheriff's Department on Thursday night.
The vehicle is a 2007 Chevy with a Cal Fire logo painted on its side. Officers with the Elk Grove Police Department found the unoccupied truck about 8 p.m. at Black Kite Drive and Apricot Woods Way.
Neither an air nor a ground search has revealed any sightings of Fleming.
He does have ties to the Elk Grove neighborhood where police found the truck, said sheriff's spokeswoman Lisa Bowman, although she didn't indicate what those were.
Witnesses in the neighborhood said it's possible the truck could have been parked in the area since the early morning hours.
Fleming is accused of killing Sarah Douglas in the couple's South Sacramento home, and then taking off -- possibly to the Fresno/Clovis area, officials said Thursday.
Douglas' aunt, Trina Werly, said the pair had been together "a couple years."
"(People) said he was a good guy, but he was very obsessive and controlling and possessing over her," Werly said. "I believe he has firearms."
Fleming works as a Cal Fire instructor in Ione, and has been with the state fire agency for 24 years. Cal Fire officials are working with the sheriff on the investigation.
"Right now, we have to let the sheriff's office do their investigation (and) figure out what happened -- who was involved," Cal Fire spokesman Daniel Berlant said. "Because of how serious this is though, we are absolutely supporting them in (every) way that we can."
Douglas' sister found Sarah dead in a bedroom, the aunt told KCRA 3.
" ... You never want to find a family member like this -- the way that he left her was tragic," Werly said. "It was extremely violent. You can see there was a serious struggle."
It was around 9 a.m. Thursday when deputies learned of the body found inside the home, which sits in the 9300 block of Fox River Way. It's not clear how they were tipped off to Fleming as a suspect.
"(Douglas') mom said that when she met (Fleming), she felt he would try to do something to Sarah," Werly said.
Investigators said earlier Thursday that they believed Fleming wouldn't stick around the Sacramento area.
In addition to the Fresno region, he has ties to several other parts of California, the sheriff's department said.
Fleming has brown hair and brown eyes, stands at 6 feet 1 inch tall and weighs about 190 pounds, deputies said.
Anyone who has had any contact with Fleming, or spotted the man, is asked to to call 916-874-5115. Homicide detectives are working the case.
"We're wondering how this is going to all turn out," Werly said. "My family is going to take a lot to recover from this. Sarah is a good girl. She'll be really missed."
KCRA 3's Claire Doan contributed to this report.