Two Guatemalan brothers who allegedly helped a prominent lawyer organise his own murder, and then blame the president of Guatemala for the crime, have turned themselves in.
Francisco and Jose Valdes Paiz were said to have hired a contract killer to murder Rodrigo Rosenberg.
An international commission found in January that Mr Rosenberg had organised his own killing.
He is said to have wanted to highlight unsolved murders in Guatemala.
Before he was shot dead in May 2009, Mr Rosenberg had warned in a video that he would be murdered on the orders of President Alvaro Colom. Mr Colom was later exonerated.
Police had been searching for the two brothers since December, when they first linked them to the murder of Mr Rosenberg.