A second suspect was arrested on Tuesday over the murder of five prostitutes in southeast Britain.
A 48-year-old man was taken into custody at his home in the red light district of Ipswich, where five sex workers used to pry their trade, Sky news reported.
Tom Stephens, a worker with a supermarket, was arrested earlier near the site where the naked bodies of the women were found.
The bodies of the sex workers from Suffolk, aged from 19 to 29, were found in early December in rural areas within 16 km of Ipswich. They were all drug users.
A total of 412 detectives have been deployed from 36 forces across the country, the biggest ever for a murder investigation.