An Irish woman is calling for international pressure to be put on Bolivia over the investigation into her son's death there five years ago.
Michael Dwyer was shot dead, along with two other men, in a police raid at a Santa Cruz hotel on April 16, 2009.
The Bolivian authorities' account of what happened that day has been contradicted a number of times and his family has been demanding an international investigation.
Two other men arrested during the raid are on trial in the south American country, and authorities from the EU and UN are waiting for that to be complete before they take action.
However, Michael's mother Caroline is demanding they move sooner.
"What we want is an independent investigation and what we want now is...a fresh initiative to exert external pressure for gathering of evidence to support and build a case for an independent investigation," she said.
"As time goes on, it's more difficult to, I suppose, gather that evidence."