Two days after being reported missing, Cobby's body was discovered on a rural farm in Prospect.
Investigations led to the arrest of five men who were later convicted of her abduction, rape and murder on 10 June 1987 and each sentenced to life imprisonment, without the possibility of parole, on 16 June 1987.At the time of the killing, Cobby sustained multiple knife wounds and lacerations from barbed wire; her death was a result of a slit throat.
The murder received widespread media coverage, condemnation, and attention.