The California man who was arrested and detained last February, and accused of writing a fake ransom note to the Nancy Guthrie family, pleaded guilty on Thursday. 

Derrick Callella faced two counts, for which he will receive probation for 10 years during his sentencing on September 10. In the meantime, he was set to report to a residential addiction treatment facility on Thursday, according to KOLD, a Tucson, Arizona, local news outlet.

The charges facing the 42-year-old Callella include transmitting a demand for ransom in interstate commerce and utilizing a telecommunications device with intent to abuse, threaten or harass a person. 

Callella texted Nancy Guthrie’s oldest daughter, Annie, and her son-in-law, Tommaso Cioni.

He used an internet phone line to send the following message: “Did you get the bitcoin were (sic) waiting on our end for the transaction.”

Following his guilty plea, “Callella acknowledged that he knew an earlier ransom demand had been made. Callella also admitted that his actions were meant to harass the family by seeking information about the investigation into the missing person’s disappearance,” the U.S. Attorney’s Office, District of Arizona, said in a statement.

The messages were sent shortly after the Guthrie family released the first video message to the alleged kidnappers, asking for proof of life, according to investigators. 

Nancy, who is the mother of “Today” host Savannah Guthrie, is still missing five months after she was taken from her home, with no known suspects or leads from investigators.