A police officer was strangled and his body cut up after meeting his alleged killer through the gay dating app Grindr.
PC Gordon Semple's dismembered remains were found at a flat in south London last week, six days after he went missing on duty.
During a prolonged forensic examination on the estate near the Tate Modern art gallery, some of PC Semple's body parts were found in communal waste bins.
Italian social worker Stefano Brizzi, who is accused of murdering the 59-year-old, was arrested at the flat after neighbours complained about a smell.
Police search the Peabody Estate. Pic: Tom Duxbury
Brizzi, 49, wore sunglasses in the dock during a brief appearance at the Old Bailey.
He was flanked by three prison guards and was not asked to plead to the murder charge.
He did not ask for bail and was remanded in custody until another hearing next week.
A provisional trial date has been set for 18 October.
Scotland Yard's murder squad is appealing for help in tracing a man who called at Brizzi's flat at 3pm on 1 April, the day PC Semple vanished after a meeting in the Shard building at nearby London Bridge.