The ex-boyfriend of a missing California woman allegedly wrote down directions about where to find her body before he was killed by police last month, Fox 2 reports.

Now, police have provided those notes to the family of 27-year-old Alexis Gabe, who has not been seen since January. The directions reportedly include highly specific and detailed notes about where he allegedly disposed of the woman’s body in Pioneer, California, which is about 60 miles east of Sacramento.

Investigators say the notes were written by Gabe’s former boyfriend, Marshall Curtis Jones, and detail where to turn, which landmarks to look for and driving time estimates.

Authorities earlier this year determined that Gabe was likely the victim of a homicide based on DNA, electronic and forensic evidence and that Jones was responsible for her death, as CrimeOnline previously reported.

In June, police attempted to arrest Jones at an apartment complex near Seattle, but he charged at officers with a knife and police subsequently shot and killed him.

The crumpled notes were discovered inside the garbage at a house belonging to Jones’ sister.

A friend of Jones reportedly told police after he died that Jones called him weeks before Gabe went missing, according to Fox 2. The friend allegedly told police that Jones said he was “thinking about killing [Gabe] and wanted to know where the best place to hide a body would be,” according to a letter that police sent Gabe’s parents, which they posted online.

The friend allegedly told investigators that he and Jones concluded “the best place to dispose of a body would be by placing it in a septic tank or burying the body in a forest area,” the letter reads.

The friend, however, claims that he thought Jones was joking.

Crews have searched extensively for Gabe based on the information in the notes, but thus far have not located her body remains, NBC Bay Area reports. The search effort included draining more than eight million gallons of water from a pond.

Meanwhile, Gabe’s parents are planning searches on their own, according to a Facebook group. But they are also holding out hope that she is alive, and they believe she may still be in the Bay Area.

“Until we find a body, we’re just going to keep believing that she’s still alive,” Gwyn Gabe, the woman’s said.

Check back for updates.

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[Featured image: Family Handout]