Case File
    ≈ 70 min 5 suspects 25 exhibits 3 checkpoint gates
    Confidential · Case File
    CC-2026-COLD-003

    Still Waters

    cold case
    hard
    ≈ 70 min
    Date opened

    Reopened Thursday 22 January 2026 (death: 15 October 1988)

    Lead investigator

    DS Marilyn Achebe, Cold Case Review Unit

    Location

    Marrow Beck Reservoir & Ashwater village, and the county records archive

    Subject

    Thomas 'Tom' Beckett, 24, junior planning clerk (deceased 15 Oct 1988)

    Incident summary

    On 15 October 1988 Tom Beckett was found drowned below the sluice at Marrow Beck Reservoir. A 1989 inquest recorded misadventure: a young man who had been drinking, slipping on the wet sluice steps. In January 2026 a retaining wall failed at the housing estate built above the reservoir, and the collapse exposed that the 1987 geotechnical survey which had approved the build was falsified: it hid a slip-plane. Tom had been the planning clerk on that file. The Cold Case Review Unit has reopened his death with modern document forensics, digitised archives and DNA recovered from his preserved jacket.

    Your objective

    Work both timelines: the 1988 file and the 2026 laboratory. Establish whether the misadventure verdict survives a modern re-read; if it does not, find how the original inquest file was doctored and by whom, eliminate the other reopened suspects, prove how and why Tom died, and name the responsible person with supporting evidence. Each stage is sealed: you will need to prove your reasoning to unlock the next.

    Persons of interest

    Who's involved

    5 people are connected to this case. In the game you'll interview each of them and weigh their motive against whether they really had the opportunity.

    Alan Mercer

    Alan Mercer

    In 1988: the Detective Sergeant who closed the case quickly.

    Dennis Quayle

    Dennis Quayle

    In 1988: Tom's drinking friend; had a public row with Tom that last night.

    Gerald Foss

    Gerald Foss

    In 1988: Chief Planning Officer (Tom's boss). Now retired.

    Nita Sharma

    Nita Sharma

    In 1988: junior surveyor who co-signed the Beckwater survey.

    Ray Dutton

    Ray Dutton

    In 1988: property developer who built the estate above the reservoir.

    How it works

    Playing a case

    1. 01Read the briefing and open the evidence board.
    2. 02Examine forensics, documents, messages and CCTV, and interview every suspect.
    3. 03Clear each checkpoint deduction to unlock the next stage as the clock runs down.
    4. 04Name the culprit, their motive and their method, then get scored against the full solution.

    Ready to open the file on Still Waters?

    Play this case