The protective order was placed against Ron Lee Haskell after he allegedly dragged Melannie Haskell by her hair and hit her in the head in front of their children in June 2008 in Logan City, Utah.
He violated that order once in August 2013, when he allegedly threatened his estranged wife and her lawyer, and again in October 2013, when he showed up at one of his children's schools.
Police said "neither protective order violation was prosecuted."
Ron Lee Haskell was looking for Melannie Haskell when police said he showed up at her sister's house Wednesday in Spring, and shot and killed six people. Melannie Haskell's sister, Katie Stay, 33, her husband, Stephen Stay, 39, and their four children, Bryan, 13, Emily 9, Rebecca, 7, and Zach, 4, died in the execution-style shooting.
Katie and Stephen Stay's oldest daughter, Cassidy, 15, was also shot in the head, but was able to contact police and give them information about Ron Lee Haskell's whereabouts, which likely saved her grandparents' lives.
Family members said Cassidy Stay was expected to make a full recovery.
Ron Lee Haskell was arrested after a standoff with police and was charged with capital murder.