21 August 2012 Last updated at 15:29 ET

Jamaica activist Clover Graham's murder brings UN call

The United Nations refugee agency s calling for a full investigation into the murder of a Jamaican human rights activist on Sunday.

Clover Graham, an honorary liaison for the agency, was found with her throat slashed outside the Jamaican capital, Kingston.

Her son and his girlfriend were killed almost five years ago. They, too, had had had their throats cut.

Two men have been found guilty of their murder and are awaiting sentencing.

Police said they were pursuing a number of leads, but did not give any details.

Mrs Graham, 56, worked at a legal aid clinic in Kingston and also lectured at the University of Technology and the Norman Law School.

She was found dead on Sunday in bushes at the Caymanas Polo Club hours after she was reported missing by her family.

In November 2007, Mrs Graham's son, Taiwo McKenzie, and his girlfriend, Jhanel Whyte, were killed.

The couple, who were dubbed as the "Good Samaritans", had their throats cut in St Andrew parish, where they had gone to give medical supplies to an injured man.

It is not clear if the two cases are related.