Police on Friday said they had arrested a freelance photographer said to be a longtime friend of the 25-year-old victim, a leading activist in the LGBTQ community in Kenya as well as a model and fashion designer.
On Saturday another three suspects were detained for their alleged role in disposing of his remains, media reports said, quoting police officials.
Chiloba’s body was discovered about 40 kilometres (25 miles) outside the Rift Valley town of Eldoret after it was reportedly dumped from a moving car.
The Star newspaper reported that a post-mortem would be carried out on Monday, while the family was preparing for a burial on Saturday.
“He died a painful death,” an unidentified police officer based in Eldoret told the media last week. “They must have tortured him and then gouged out his eye. It appears he was strangled.”
UN human rights chief Volker Turk said on Saturday he was “shaken” by Chiloba’s death.
“Standing in solidarity with LGBTQ!+ activists around the world. Urgent need to redouble efforts for their protection,” he said on Twitter.
His call was echoed by the African Union’s human rights commissioner Solomon Ayele Dersso who issued a statement Saturday condemning Chiloba’s killing and saying it appeared it was “a result of hate”.
Dersso urged Kenya to initiate a “transparent, thorough, and prompt investigation” into the murder and bring those responsible to justice.
He also called on Kenya and other AU members to take measures to ensure that “all vulnerable members of society, including those who are or are perceived to be different from the mainstream members of society including on account of their sexual or gender identity, are guaranteed to live a life free from the threat of violent attacks”.
The Kenya National Commission on Human Rights said Chiloba’s death followed the unsolved murders of several other rights advocates for sexual minorities, Sheila Lumumba, Erica Chandra and Joash Mosoti.
“The continued targeting of those perceived to be different is worrying,” the state-run but independent rights watchdog said.
“The National Police Service should step up efforts to ensure Kenyans feel safe, and are not arbitrarily attacked or targeted for their perceived beliefs or associations,” it added.
Amnesty International called for “speedy investigations into (Chiloba’s) brutal murder,” saying “no human life is worth less than another’s.”