Ricardo Barreda
Ricardo Alberto Barreda was an Argentine convicted mass murderer and former dentist. He was born in La Plata, Argentina. In 1992, he murdered his wife, two daughters and his mother-in-law. In 1995, he was sentenced to life imprisonment. He was granted house arrest in 2011 and let out of prison on parole in 2016.
Barreda died of cardiopulmonary arrest caused by Alzheimer's disease on 25 May 2020 in Buenos Aires, aged 83.