Ricardo Barreda was an Argentine dentist who was sentenced to life imprisonment for killing his wife, his two daughters and his mother-in-law on 15 November 1992. He was granted parole in March 2011 and died nine years later, in November 2020, at a care home where he had been living with Alzheimer's disease. He died of a cardiac arrest. His case drew attention in Argentina because the victims were members of his own family.
The murders
On 15 November 1992, Barreda killed his wife, Gladys McDonald, his daughters Cecilia and Adriana Barreda, and his mother-in-law, Elena Arreche. He was convicted of all four murders and sentenced to life imprisonment, the usual maximum penalty in Argentina for such crimes at the time.
Parole and death
Barreda was granted parole on 29 March 2011, after serving about nineteen years in prison. He later lived in a care home, where he was diagnosed with Alzheimer's disease. He died there on 24 November 2020, nine years after his release, from a cardiac arrest.