The horrific mystery of the “Armchair Killer” is among a number of Coventry cold cases that have been highlighted by a new crime map revealing 1,000 unsolved murders.

Every case has been the subject of a major police investigation, with some dating back to the pre-war era and others occurring in the last decade.

This exclusive list was compiled from Freedom of Information (FOI) requests to every police force in the country, supported by research through a wide variety of local newspaper archives.

Cases include many seemingly random attacks, usually on women, carried out by strangers with no apparent motive.

The oldest Coventry cold case included in the files is the brutal murder of Penelope Mogano in January, 1954.

Penelope, aged 44, was found slumped in an armchair at her home. Her

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