Evelyn and Paula's Daughters

Evelyn's daughter Paula kept tabs on her father that weekend. Evelyn paid for a nurse to come in during the day. The next morning when the nurse called Evelyn, she said that Frank had been gone for some time. She didn't want to know if the nurse had found him with his mouth agape. Who wants to die alone in her apartment and be left undiscovered for enough time that the smell of soured milk would be the giveaway?