Zara Aleena's family have paid tribute to her "carefree spirit" as a 29-year-old man has been charged with her murder in a suspected stranger attack in Ilford, east London.
Jordan McSweeney, 29, of no fixed address, has also been charged with attempted rape and robbery, the Metropolitan Police said.
McSweeney will appear in custody at Thames Magistrates' Court later on Wednesday.
Zara Aleena, who was hoping to qualify as a solicitor, was attacked in the early hours of Sunday morning in Ilford as she made her way home after an evening out with friends.
In a tribute released after her death, Ms Aleena's family said the law graduate "believed that a woman should be able to walk home", adding: "Women should be safe on our streets. She was in the heart of her community, 10 minutes from home."
The statement said Ms Aleena had wanted to be a lawyer since the age of five, and described her as "a carefree spirit, with the most caring heart".
"Zara was happy and at a point in her life when her joy was radiating and blossoming," her family said.
"She was ready to make a family of her own. Her sense of justice and fairness led her to a life of giving and caring for others - supporting refugees fleeing violence, giving voice to those who had less power.
"She had that special habit of noticing others in need and always put their needs on her agenda."
"Our loss is irreparable and the void feels insurmountable", the statement added.
Friends of Miss Aleena, who had recently started working at the Royal Courts of Justice, have revealed how she ignored advice to take public transport because she loved walking.
Her murder took place in the wake of the national rail strike on Saturday and it is not clear whether problems on the transport network had influenced her decision to walk home.
However, concerned friends said that they had warned her not to walk alone late at night just days before she was killed.
One grieving friend said that she had urged her to always catch a bus late at night and said she had agreed.
“She loved to walk because she was always going from here to her mother and grandmother’s house,” the friend said.
“She walked a lot and she enjoyed it. But I did say to her on that evening to get the bus home and she said she was going to. So why she didn’t, I don’t know.”
A resident who lives close to the scene of the attack described seeing a man in the early hours of Sunday morning close to the scene where Miss Aleena was later found.
They told how medics then battled at the scene for two hours to save Miss Aleena’s life.
She said: “The ambulance arrived at around 2.44am and they were working on her until around 4.30am-4.45am. They were doing CPR on her.
“I feel exposed. I never imagined I would witness this sort of thing. It will stay with me for the rest of my life.”
Nadia Khan, 35, a cycling instructor said: “A local’s private CCTV camera caught her being dragged into the driveway. Someone local was walking past and saw that she was still breathing and tried to give her CPR.
“What I would say is that people must be more alert and make sure you plan your route, especially at night.”
Fowzai Soonhan, 68, a teaching assistant said: “We saw the ambulance crews working on resuscitating her, then they put her on a stretcher and took her to hospital.
“It’s sad, very sad, standing here watching them trying to save someone’s life. It’s getting to be quite scary around here. We used to have police officers patrolling the area, but not any more.
“The police did come around and ask for our camera footage, but ours was too blurry and distant.”
Other friends of Miss Aleena have been paying tribute to her, with one describing her as the “sweetest girl you could meet”.
One friend, called Sophie, said: “She was just a kind soul, the sweetest girl, she could never harm a fly. Always polite, always bubbly, the sweetest girl that you could ever meet really. So much going for her.”
