A grand jury in Texas has indicted the boyfriend of college student Zuzu Verk for her murder.
Robert Fabian was arrested in early February on a warrant for tampering with, or fabricating, physical evidence by concealing a human corpse in connection with Zuzu's disappearance. Because of the additional charges, Fabian's bond has been increased to $750,000, according to officials with the Alpine Police Department.
Verk, who was studying conservation biology at Sul Ross State University in Alpine, Texas, was last seen the night of October 11, 2016. Her remains were discovered in February in a shallow grave northwest of the small town. Authorities described the grave site as "well concealed," and said additional evidence was also located in the area.
Fabian was the last person reportedly seen with Verk, and was named a suspect in the case just two weeks after she vanished.
One of Fabian's friends, Chris Estrada, also faces charges of concealing a corpse in connection with the case. Estrada was arrested in Phoenix in early February as well, and has since been extradited to Texas.
Arrest warrants revealed Fabian told investigators the couple got into a "heated" argument the night Verk was last seen. The documents also showed that Fabian was seen purchasing paint cloths at a dollar store with Estrada's credit card that same evening.
Both men remain behind bars.
Verk was featured in Dateline's Missing in America series shortly after she disappeared.