Sierra Vista police said that a couple and their 5-month-old baby were found dead at their home shortly before noon Wednesday.
A relative called police after discovering the lifeless bodies of Gerardo De La Torre, 47, Raquel De La Santos De La Torre, 30, and their infant.
Sierra Vista Police spokesman Corporal Scott Borgstadt affirmed that the father had terminal cancer and had been told he could not be helped.
The couple left a suicide note explaining that they “had agreed to a suicide-pact, and they were taking the baby with them,” Borgstadt said.
The three victims had single-shot wounds each. The parents were shot in the head while the baby had a gunshot wound to the chest.