Texas Mother Confesses To Killing Two Daughters, Aged 1 And 6 04/07/21 AT 6:31 AM 30-year-old Madison McDonald entered the police department's lobby and called dispatchers using a public telephone to report of her alleged murder. Photo: Irving Police Department KEY POINTS Police said McDonald believes she killed her daughters by smothering them The department has made contact with McDonald before the incident A Texas mother was arrested Monday after she confessed to killing her two daughters, local authorities said. A statement from the police revealed that 30-year-old Madison McDonald entered the Irving Police Department at around 10:00 p.m. and used the public telephone in the lobby to dial 911 where she confessed to killing her daughters, 1-year-old Lillian Mae McDonald and 6-year-old Archer Hammond.