Michael Weir fatally attacked 78-year-old Leonard Harris and Rose Seferian, 83, in 1998, the Old Bailey was told. The original investigation missed clues to link the killings but DNA testing connected Weir to both London attacks after 20 years, the court heard. Weir, 52, of Hackney, had denied two counts of murder. Prosecutor Tom Little QC told the jury the "defenceless pensioners" had been struck repeatedly and "left for dead". Weir was originally found guilty of murdering Mr Harris by an Old Bailey jury in July 1999, but his conviction was quashed by the Court of Appeal in 2000 on a technicality. He was retried under the so-called double jeopardy law when new forensic evidence came to light, and prosecutors believe Weir is "the first convicted man to be convicted twice". Trial judge Mrs Justice McGowan told the jury they had made "legal history".
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