"The painter and decorator, was arrested last year after his daughter was cautioned following a a minor tiff with her boyfriend and was required to provide police with a DNA sample.
A familial match was identified between her DNA and the DNA taken from Melanie's body and clothing in 1984...."
http://m.independent.ie/world-news/europe/caught-by-his-own-daughter-killer-pleads-guilty-in-32yearold-murder-case-34698195.html
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