I think Amaral knows what happened in both cases. But I doubt that Portugal will pursue this and I can't see any means by which this can be investigated outside of Portugal.
I think it has become increasingly obvious that there was and still is a particular attitude in Portugal pertaining to crimes perpetrated against women and children. I think Leonor, Joana, Kate, Madeleine and Jacinta are cases in point.
Australian woman’s death in Algarve questioned by family-28th October 2010
Family members of an Australian woman who was found dead at her home in São Brás de Alportel in March 2008 are claiming that she was murdered despite Portuguese police ruling that she had committed suicide.
The body of Jacinta Rees was found by a teenage neighbour at around 9.30am and, at the time, police told the Algarve Resident: “There were traces of blood found at the house, however there is no suspicion of murder.”
The spokesman for the GNR continued: “The PJ police investigated the property and did not find any evidence of robbery or any other crime.”
At the time of the incident, the police spokesman said that Jacinta Rees could have been “psychologically impaired” due to the fact that she had been in a car accident two days earlier and treated at Beja Hospital.
According to Australian newspaper Herald Sun, a new autopsy by Australian authorities concluded that Jacinta Rees died from a “blunt force injury to the left side of the head. The injury pattern with trauma to both head and the left arm raises serious concerns. Further investigations are being undertaken via the Victorian Police Department’s homicide squad.”
https://www.portugalresident.com/australian-womans-death-in-algarve-questioned-by-family/Of course Portugal won't ever investigate Amaral not even when he throws his weight behind the paedophile and rapist suspect in Madeleine's murder suggesting he's a patsy.
What would be the point anyway. Even were he to be convicted of something, the appeal courts would iron it all out for him. Can't help but wonder why his appeal against perjury resulting from the torture trial hit the skids when even Cristivao walked away from that one without blemish to his name.