On July 2, 2014, a welfare check at a home near 34th Avenue and St. John Road in Phoenix turned up the bodies of 64-year-old Barbara Singer and her 81-year-old husband, William Singer. Both had been violently killed and appeared to have been dead for several days. William, who had recently been hospitalized and had mobility problems, was found slaughtered in his chair; a blood trail led to another room where Barbara, a pediatric nurse practitioner who treated abused children, was found on the floor. Investigators saw no signs of forced entry.

Surveillance from a Wells Fargo ATM on June 28, 2014 — four nights before the discovery — showed each of the Singers separately withdrawing large sums of cash around 10:30 p.m., an unusual late-night activity for the couple. Detectives noted William seemed to be under duress, and the working theory became that the pair were compelled to make the withdrawals, then returned to their home and killed. Police briefly considered two men who had posed as cable workers at a nearby home two days before the murders; those men were later located and cleared.

If anyone knew the Singers, saw them in late June 2014, or has information about the ATM withdrawals or anyone bringing them home, please share what is known.