Cabo Costa, a former military officer of the Republican National Guard (GNR), is a serial killer from Santa Comba Dão who is currently serving a prison sentence for the homicides of three women: Isabel Isidoro, Mariana Lourenço, and Joana Oliveira.
According to the available information, his release is scheduled for April 2027, which has generated public attention regarding the case.
The crimes were committed in the Viseu district, specifically in the region of Santa Comba Dão, the killer's hometown.
The Cabo Costa case is considered one of the most publicized criminal cases in Portugal, having marked Portuguese public opinion due to the gravity and nature of the crimes committed.




