Coroner's Finding: MORTIMER-SHEARER Lochlan Brodie

18y · Male·unascertained cause; possibly drowning, hypothermia, cold water immersion, or cardiac dysfunction secondary to methamphetamine abuse and physiological stress

Lochlan Mortimer-Shearer, 18 years old, died of unascertained cause after fleeing police in a stolen vehicle on 21 June 2016. He was evading apprehension after breaching bail conditions and curfew. Following a brief police pursuit (47 seconds, lawfully abandoned for safety), he drove recklessly at high speed, crashed twice, then fled into salt pans near Dry Creek. His body was found 24 days later submerged in a drainage ditch. Post-mortem examination revealed no significant natural disease or traumatic injury. Death likely resulted from drowning, hypothermia, cold water immersion, or sudden cardiac dysfunction secondary to methamphetamine abuse combined with physiological stress from high-speed driving and evasion. He had been using large quantities of methylamphetamine (1.75-3.5g daily) in the days before his death. The police response and search decisions were deemed appropriate given the circumstances, though the initial search focused on wetlands rather than the salt pans where he was ultimately found.