Primary school teacher Sabina Nessa was murdered as she walked to meet a friend on Friday evening.
Here is a timeline of events leading up to the arrest of a 38-year-old man on Thursday.
Friday September 17, 8:30pm: Sabina Nessa, a teacher at the Rushey Green Primary School in Lewisham, sets out on a five-minute journey to meet a friend at a pub in Kidbrooke but never arrives.
Saturday September 18, 5.30pm: The body of Ms Nessa is found close to the OneSpace community centre in Cator Park, Kidbrooke, in the Royal Borough of Greenwich, by a member of the public.
Saturday evening: A man in his 40s is arrested on suspicion of murder at an address in Lewisham, and is later released under police investigation.
Monday September 20: A post-mortem carried out at Greenwich Mortuary proves to be inconclusive.
Monday, 9pm: The victim is identified publicly as Ms Nessa.
Lisa Williams, head of the Rushey Green Primary School, pays tribute to her, saying: “She was a brilliant teacher; she was kind, caring and absolutely dedicated to her pupils.
“She had so much life ahead of her and so much more to give and her loss is desperately sad.”
Wednesday September 22: Ms Nessa’s cousin Zubel Ahmed says that her family is “inconsolable” following their loss.
In an interview with the BBC, he says: “We are all truly devastated. Her parents are absolutely shocked, they’re inconsolable still and understandably so, to hear of their daughter being taken away from them by some cowardly man is just horrific.”
Thursday 23 September, 8pm: The Metropolitan Police announce that a second, 38-year-old man has been arrested at an address in Lewisham on suspicion of Ms Nessa’s murder and is being held in custody.
The force also issues CCTV images of a man they want to speak to, who was in the area at the time of the attack, as well as pictures of a car they believe the unknown man has access to.