Collage by Marta Parszeniew. Stefano Brizzi picture via Met Police. Phone picture by Asimzb via acid photo via Wiki

When the smell of rotting human flesh became too much for the residents of Block E to take, the caretaker of the Peabody Estate first tried to mask it with bubblegum-scented air spray. When that didn't work, somebody eventually decided to call the police.

That was on Thursday, April 7, of last year. Almost a week earlier, on the night of Friday, April 1, a man who would later be identified in court only as "CD" found himself lost on the estate while looking for a chemsex party he'd been invited to by someone named "Domination London" on "gay fetish app" Recon. The Peabody Estate, which originally opened in 1876, lies a few minutes south of the Thames, between London Bridge and the Tate Modern. Its desirable location means a one-bedroom or studio apartment there will set you back about $1,600 a month in rent, but its various blocks can be difficult to navigate for the uninitiated.