http://www.independent.ie/irish-news...-35627546.html

A senior detective has urged those shielding the killer of a German backpacker in Northern Ireland that it is not too late to do the right thing.

Inga Maria Hauser, from Munich, was murdered 29 years ago shortly after arriving in the region off a ferry from Scotland...

Mr Murray said Ms Hauser had been victim of a "vicious and ruthless assault". Detectives believe whoever killed her had a sexual motive.
http://www.bbc.com/news/uk-northern-ireland-39615683

Inga Maria Hauser's body was found in a remote part of Ballypatrick Forest, near Ballycastle, County Antrim, on 20 April 1988. Her neck was broken...

A number of years ago, DNA screenings were undertaken to find a match to a male genetic profile found at the murder scene.

However, the 2,000 samples screened failed to find a definitive match.