Police believe that a woman and girl found dead in a Mesa home Monday were part of a murder/suicide.
Officers responded to a home on East Ingram Street Monday afternoon after a man arrived home from work and found his wife and daughter dead.
Police have identified the 45-year-old woman as Marcia Wentzel and the 12-year-old girl as her daughter Caitlin.
Both had reportedly been suffering from "debilitating, long-term medical conditions," according to Mesa police.
Inside the home, officials also found two suicide notes.
It appears that the cause of death may have been asphyxiation or prescription drug overdose, but a medical examiner has not yet confirmed the cause.
No suspects are in custody and police do not believe anyone else was involved.
The investigation is ongoing.