Pete Doherty has been arrested on suspicion of supplying the drugs that killed 27-year-old filmmaker Robin Whitehead.
Whitehead had been spending a lot of time with the Babyshambles frontman after filming the documentary "The Road To Albion" about Doherty's former band, the Libertines. Her body was found on January 24 when paramedics were called to a flat in east London.
Doherty, 31, was arrested Friday, and released on bail to return for questioning in April. Three other men were also arrested in connection with the death.
Whitehead was the daughter of filmmaker Peter Whitehead.
Doherty is also wanted for questioning in the unsolved death of Mark Blanco, who plunged to his death at a party in 2006 after an argument with Doherty.
See Robin Whitehead photo below: