The prosecution said 'postmortem examinations on the four young men who died revealed that each had died from a drug overdose featuring high levels of GHB', but Port surreptitiously used other drugs on his victims: amyl nitrite ( poppers), Viagra, mephedrone, and methamphetamine (crystal meth). The graveyard of St Margaret's Church, Barking: the bodies of three of the four murder victims were found here.
