Timeline: Disappearance of Sul Ross student Zuzu Verk

It has been almost four months since missing Sul Ross student Zuzu Verk was last seen.

Below is a timeline of each and every update to her disappearance:

Wednesday, October 12th - Zuzu is last reportedly heard from. She misses both a midterm exam and her shift at work.

Friday, October 14th - Zuzu is now considered to be missing and believed to be "endangered".

-Local law enforcement begins searching Alpine and Brewster County.

Sunday, October 15th - The first volunteer search is held with both law enforcement and members of the community.

-Police ask for help in identifying vehicles they believe are connected to the case.

Monday, October 17th - The father of Zuzu, Glenn Verk, speaks out publicly.

Thursday, October 20th - Police search boyfriend Robert Fabian's apartment, who is now considered as a person of interest.

-Reward for finding Zuzu raised to $50,000

Friday, October 21st - A joint press conference is held by the Alpine Police Department and Brewster County Sheriff's Office.

-Law enforcement say that Robert Fabian is not cooperating.

-The reward for finding Zuzu is raised to $100,000.

-Sul Ross State University holds a separate conference addressing safety and security concerns.

- A community prayer is held in Alpine for the Verk family.

Monday, October 24th - The attorney for Robert Fabian meets with the Verk family.

Tuesday, October 25th - Chris Estrada, a key witness in the case, is not cleared following a polygraph test.

Wednesday, October 26th - Warrants reveal new details in the case and investigation.

-Boyfriend Robert Fabian is now considered as a suspect in the case.

-A vigil is held of Sul Ross State University for Zuzu.

Thursday, October 27th - Personnel from the Texas Attorney General's office arrive in Alpine to begin being briefed by law enforcement on the investigation.

Friday, October 28th - Police begin working to set a date for a grand jury to meet.

-Crews search a landfill in Odessa for trash from the City of Alpine which may be connected to the case. Crews have searched landfills in Alpine, Presidio and Odessa.

Monday, October 31st - The reward for finding Zuzu is raised to $200,000 thanks to H-E-B, who Zuzu's father works for.

Tuesday, November 1st - Searches for Zuzu in Alpine and Brewster County now focusing in on tips received by law enforcement.

Monday, November 14th - The grand jury meets to hear testimony from witnesses and persons of interest in the case.

Wednesday, November 16th - The grand jury meeting wraps up with the expectation to reconvene in December.

-Grand jury see family members of Robert Fabian but not Robert himself.

-Nothing new had been filed by prosecutors.

Sunday, November 20th - #FindZuzu walk held in Downtown Alpine

Wednesday, November 23rd - Tip line held on CBS 7 with the Odessa Crime Stoppers

Tuesday, December 6th - Tips from tip line lead law enforcement in new directions

-Chris Estrada, friend of Robert and person of interest in the case tells Crime Watch neither he nor Robert had anything to do with Zuzu's disappearance.

Monday, December 19th - Robert Fabian is called before the grand jury

Tuesday, January 3rd - Chris Estrada tells CBS 7 during an interview that he is now being considered as a suspect in Zuzu Verk's disappearance

Sunday, January 22nd - Chris Estrada is charged and arrested for Driving While Intoxicated and Evading Arrest

Monday, January 23rd - Chris Estrada bonds out of jail

Friday, February 3rd - A body is found outside of Alpine

-The family of Zuzu Verk flies into Alpine

Saturday, February 4th - Robert Fabian is charged and arrested on a warrant for tampering with or fabricating physical evidence by concealing a human corpse.

-Police believe evidence at the scene match features consistent with Zuzu Verk, but no formal identification made