Did Lisa have a cell phone? Did she have a vehicle other than the truck Chris drove?
Here is the deal, her mother needs to go to her local police department and file a missing person report. Tell them that the police department in Eufala did not file a report and ask them what else she needs to do. She needs to be willing to patiently answer all of their questions. She needs to show up prepared with a list of facts including any past history of domestic violence, drug or alcohol abuse etc. on the part of the husband. Include her last post made the night before she disappeared. Include his story about being stuck in the mud. Bring contact info for Lisa's work and friends.
No matter what, Lisa's mom must be calm and persistent. It is very hard to get all of the facts from a person who is very upset and emotional. I am a mom too, and I know it's hard to keep it together when it seems like no one is listening, but clear communication of the facts is what will get the best response.
Police need to talk personally with this husband ASAP and get pemission to look through the house. They need to look for a cleaned up crime scene and any injuries on his body such as scratches on his face and arms. They need to see if things like her cell phone, make-up, jewelery, prescription meds, and wallet are still in the home. Women don't leave without those things.
MOO
