A known vocal critic against human rights abuses in the Philippines, he was murdered by unknown assailants in 2006, with his case currently remains unsolved.

His grandfather Don Felix Ramento was Guimba's town mayor from 1922 to 1925 and Alberto had three uncles who were pioneer priests in the Iglesia Filipina Independiente.

The Ramento family owned several large plots of land inherited from the Baldovino clan, Alberto's mother's side.

In September 1998, the National Democratic Front of the Philippines (NDFP) Negotiating Panel nominated him as an Independent Observer in the Joint Monitoring Committee (JMC) of the Comprehensive Agreement on Respect for Human Rights and International Humanitarian Law (CARHRIHL).

He was found dead with multiple stab wounds inside his rectory at the Church of Saint Sebastian in Tarlac City in the early morning of October 3, 2006.

Initial police findings ruled his death as robbery with homicide, but IFI church officials, his family, followers and supporters were not convinced.