London Murder, Rape Victims May Have Met Attacker on Grindr

London police are warning Grindr users that a series of crimes in the city, including a murder, may be linked to the gay dating app.

Adrian Murphy, 43, was found dead in an apartment in London's Battersea neighborhood June 4, The Telegraph reports. "Tests failed to establish the exact cause of his death, but police say property had been stolen from the premises, and believe he was lured to the flat after chatting with a stranger on Grindr," the newspaper notes.

His death appears to be connected to the rape and robbery of a 40-year-old man who met his alleged assailant online. This man, whose name was not made public, invited the online acquaintance to his apartment in the Walthamstow neighborhood May 30, and he believes the attacker drugged him before raping him and taking valuables from his home, police said. The victim, unconscious when a friend found him, was treated at a London hospital and has now been released.

Detectives Tuesday arrested a 24-year-old man and a 17-year-old girl on suspicion of murder and robbery, and the man was also suspected of rape, The Telegraph reports. Both have been released but remain under investigation.

"We have linked these two incidents through our suspects, and our enquiries continue to establish the exact circumstances," Detective Chief Inspector Rob Pack told the paper. "We know the victim in the Walthamstow incident met the male suspect through a social networking site, and we are investigating whether there is a similar connection in Mr. Murphy's death. Both incidents happened over a short period of time and thorough enquiries have led us to make these prompt arrests. However, there is a possibility other offenses may have been committed before 30 May."

Police asked for any men who were attacked under similar conditions to come forward and for anyone who saw suspicious activity June 4 near the apartment where Murphy was killed to report it.