Daniel Herbert Vaughn, 43, and his mother, Rosa Vaughn McGahagin, 67, were found shot to death inside Vaughn Photography on North Florida Street in Mobile, Alabama, on December 4, 2014. Daniel ran the family studio since 1994 and was remembered as a skilled photographer, a devoted father of a son and a daughter, and an active volunteer at their Catholic school and church.

Investigators were told Daniel had been in a relationship with the estranged wife of 56-year-old Terry Walton of Pensacola. Family members said Walton had shown stalking behavior and the family had discussed seeking a restraining order days before the killings. A customer discovered the bodies at the studio, and Walton was later found dead of a self-inflicted gunshot wound; with him gone, authorities treated the case as closed.

Does anyone who knew Daniel or Rosa recall concerns about Walton or other incidents before December 4, 2014?