Massachusetts prosecutors issued a murder warrant Tuesday for Brian Walshe in the death of his wife, Ana Walshe, who disappeared from a wealthy Boston suburb around New Year’s Day.

Norfolk District Attorney Michael W. Morrissey announced the charge, but did not release details about what led investigators to the decision. Brian Walshe was previously arrested on suspicion of misleading the investigation and is still in police custody.

Anna Walshe.via Cohasset Police

Brian Walshe is expected to be arraigned on Wednesday, where more details supporting the charge can be provided, Morrissey said. Ana Walshe was allegedly last seen at her home early on January 1 before allegedly taking a carpool from her Cohasset home to Boston’s Logan Airport. Her husband and her employer simultaneously reported her missing three days later.

It is unclear who provided the details of his last known location, when he was supposedly leaving for a work emergency.

Cohasset police conducted a two-day ground search of the area around his home in conjunction with state police. NBC Boston reported.

This is a developing story. Please check for updates.