Secret Witness is now offering up to a $10,000 reward for information leading to the arrest or conviction of the person or persons suspected of murdering Karen Kay Duenas.
Karen Kay Duenas, 51, was found dead inside a Cottonwood home early Saturday morning, according to Shasta County Sheriff's Deputies.
Officials have yet to release her cause of death, the names of any suspects, or a motive.
Duenas' body was found Sunday at a home on the 2000 block of Robinson Glenn Drive. Deputies were responding to a call that a woman was badly injured but they discovered Duenas' body and pronounced her dead.
SHASCOM incident reports do not specifically say who found the body. However, the caller reported walking into a room when the body was found.
The caller said she had a large gash in her chest and blood was everywhere.
A CHP helicopter, ground searchers, as well as a metal detector were requested to the scene.
Officials with Shasta County Sheriff's Office said an autopsy was conducted Monday, but they are not releasing the cause of death.
The Coroner's office did say Duenas' body was no longer in their possession.
The Sheriff's department said they have taken several calls from the public with leads that have been helpful.
The Sheriff's department said although they are releasing very little information and do not have anyone in custody they don't believe there's any danger to the public.
KRCR News Channel 7 spoke with neighbors who say the woman who lived at the home five sons and was well known in the community.
Duenas was an instructor at Shasta College for six years. She was a faculty member in the business, agriculture, industry and technology division, primarily teaching at the school's Red Bluff campus.
Former students described her as knowledgeable, supportive and said she worked hard to make sure her students took her class seriously.
Teala Alpizar was in Duenas' keyboarding class for a year. She said she can't believe the news.
"It's off the wall. You look at your teachers and they're so smart and they've done everything and now she's gone. It's not simple for me to take it all in and think that I'm not going to see her again. She's not going to be walking through the door again or say hi. It's rough," said Alpizar.
Shasta College released this statement saying it is in the words of one of her colleagues, "Karen was an amazing instructor and beautiful human being. She was loved dearly by everyone, student or colleague, who came in contact with her. I am going to miss a friend, and we are all going to miss her beautiful smile and friendly presence."