Joel Osei, 26, of Seven Sisters, London, killed Adrian Murphy, 43, using scopolamine. While the drug has medicinal benefits, it is most commonly used in rapes and kidnappings in South America but has never been used in a British murder before.
Osei used the gay dating app, Grindr, to arrange to meet Murphy, who worked as a choreographer and dance teacher at the Royal Academy of Dance and previously appeared on TV but was on a year-long sabbatical at the time of his death, according to The Times.
When Osei entered Murphy's home on June 1, he drugged him and stole his belongings, including phones, laptops, bank cards, and a designer bag and wallet, which he then passed on to his girlfriend, Diana Cristea, 19, to sell online.
The couple also attempted to spend $80,000 at a New York diamond jeweler. The following day, photos of the stolen items were taken with Cristea's phone and posted for sale online.