Arrest warrants were approved on Thursday for six attendees at a party in Nonthaburi where product presenter Lunlabelle served drinks and was later found dead in a condominium lobby.
The Nonthaburi provincial court on Thursday afternoon issued arrest warrants for house owner Chaiyaphon Panna, 29; his brother Nathee Sathitpongsathaporn, 33; Mr Chaiyaphon’s wife Phikulthong Boonpha, 24; Kritsada Lohidee, 27; Ms Pathanan Raksakul, 26; and Koset Ritnitiruek, 35, for illegal assembly and colluding in indecent assault.
Four of the suspects were later arrested. Police were searching for Mr Kritsada and Ms Pathanan.
Pol Maj Gen Thanayut Wutthicharasthamrong, deputy chief of the Provincial Police Region 1, said police were interrogating the four new suspects and samples would be taken for DNA testing.
Thai media reported the court approved the warrants after traces of semen were found on underwear, shorts and a blanket seized from the party house.
Another product presenter, identified only as "Deer", filed a complaint with Bang Bua Thong police in Nonthaburi that she woke up naked at the house in Bang Bua Thong district on Sept 17 with no idea what happened to her.
Atchariya Ruangrattanapong, chairman of the Help Crime Victim Club, escorted her to the police station to file the complaint.
Like Thitima "Lunlabelle" Noraphanpipat, the young woman had been hired to serve drinks at the house, working from between 10pm on Sept 16 to 3am on Sept 17. Thitima left the party earlier that evening after finishing work.
Thitima, 25, was found dead early on Sept 17 in the lobby of a condominium building in the Talat Phlu area where her co-worker Rachadech "Nam Oun" Wongthabutr lives.
An autopsy found Thitima had died from alcohol poisoning.
On Wednesday, police arrested Rachadech, 25, at a petrol station in Thon Buri district and charged him with unlawfully detaining Thitima in a way that caused her death, sexual assault, and committing an act of indecency.
Mr Rachadech was caught on security camera footage carrying an unconscious Thitima into the condo building on the evening of Sept 16 and hours later placing her on a sofa in the lobby where a security guard later found her dead body.
Police interrogate Chaiyaphon Panna, 29, one of six suspects, at Bang Bua Thong police station.(Clip taken from Help Crime Victims Club Facebook page)