Nampa police arrested Susana Cordova Quijano, 34, of Nampa in Caldwell late Sunday afternoon.
She is charged with second degree homicide in the stabbing death of her 36-year-old boyfriend. Police have not released the victim's name.
The victim's roommate called police to their home in the 500 block of North Franklin Street in Nampa at around 7:20 p.m. Saturday. They found the victim at the home. He had been stabbed once in the chest. He was taken to a local hospital and was pronounced dead.
Neighbors gave police information to identify Quijano as a suspect. Police found her walking down the street in Caldwell. They arrested her without incident. She is being held at Canyon County Jail without bond.
At a press conference Sunday, Sgt. Tim Randall with the Nampa Police said the homicide appears to be the result of a domestic dispute between Quijano and the victim. The couple had a history of domestic violence.
Police have not located the murder weapon. They believe it was a knife.
Quijano will be arraigned at 1:30 p.m. Tuesday at Canyon County Courthouse.