The Commissioner of Police in the state, Mr Garba Danjuma, made the disclosure at a news briefing in Birnin Kebbi on Wednesday.
The police commissioner said that the suspects allegedly conspired with her former in-laws to kill her husband.
Danjuma said: “One Auta Dago conspired with her former father-in-law Garba Hassan and brother-in-law Garba Sahabi to allegedly kill her present husband in the bush.”
According to him, the suspect, who resides in Sabongari village in Bagudo Local Government of the state, allegedly confessed to conspiring to kill Shaho of Tungar Bature village to enable her go back to her former husband, Idris Garba.
One of the suspects told the News Agency of Nigeria (NAN) that they attacked and killed Shaho in the bush using machete and stick.
The police commissioner said all the suspects had been arrested and would be charged to court after the completion of investigation.