A jealous student who threw allegedly threw acid over her friend's face changed her display picture on a social network site to Freddie Krueger days after the attack, a court heard on Tuesday.
Mary Konye, 21, was angered because attractive victim Naomi Oni called her 'Wrong Turn' after the disfigured cannibals from the horror film.
She posted the Nightmare on Elmstreet picture on the WhatsApp site with the message underneath: 'Who looks like Wrong Turn now?'
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Konye fawned over Ms Oni, 21, 'almost to the point of obsession,' Snaresbrook Crown Court heard.
She is said to have told friend Kamilah Andrews: "What if I bought acid and threw it in her face, so she would know how she makes me feel?"
Gareth Patterson, prosecuting, said: "Kamilah Andrews confirms the victim and the defendant used to fall out.
"The defendant was insecure about her looks and appeared to be hurt by comments made about her looks by the victim, saying that she looked like 'Wrong Turn', a disfigured character from a horror film.
"Kamilah states the defendant would complain that the victim would never compliment her about her looks and that this greatly affected the defendant because she admired Naomi, almost to the point of obsession.
"The defendant also joked with others about throwing acid on someone and that someone had suggested to Konye that she should wear a 'nijab' so the police could not identify her.
"Following the attack, the defendant updated her profile on 'WhatsApp' - it displayed a photograph of Freddie Krueger, the scarred-face character from 'Nightmare on Elm Street.''
Another friend of Ms Oni and Konye said the defendant had updated her Blackberry Messenger status to "She better not mess with me or I will make her face look like this," accompanied by a picture of Freddie Krueger.
Another friend, Omolola Vincent, who did not know Naomi, told police how Konye had asked her about the chemistry lab she studied in and when it was open and closed.
Mr Patterson continued: "The defendant also spoke about how to do it without getting caught and mentioned getting hold of and wearing Muslim clothing so that only her eyes could be seen.
"In due course the defendant said that she had managed to buy acid and said she planned to wait for Naomi near her house.'
Ms Oni had worked for Victoria's Secret lingerie store in Westfield Stratford City and was followed home by Konye who disguised herself in a full niqab, it is alleged.
Konye is accused of attacking Ms Oni after she got off the 368 bus and was walking along Lodge Avenue, Dagenham in the early hours of 30 December 2012.
The victim ran home screaming and her mother put her under a cold shower.
Konye denied being jealous of her friend's good looks and said she had no idea who had thrown the acid over Ms Oni.
She had been a business and finance student at the University of Hertfordshire and claimed to be working at Forever 21 at Westfield Stratford City on the weekend of the attack.
Konye, of Throckmorton Road, Canning Town, east London, denies applying corrosive fluid with intent to disfigure, maim or cause grievous bodily harm.
Ms Oni sobbed as she told the court she thought someone was trying to kill her when the acid was thrown over her face.
She said she had been working the evening shift from 7.30pm to 11.30pm at Victoria's Secret and left work with her colleagues as normal.
Ms Oni only noticed a 'presence' following her as she turned into Bromhall Road from Lodge Avenue, Dagenham, where the attack took place, Snaresbrook Crown Court heard.
Giving evidence she said: "I was on the phone to my boyfriend and I felt a presence.
"I turned to my left and there I saw someone in black attire, a black niqab.
"I remember it facing me and staring directly looking at me.
"It was long and black and covered and I could only see the eyes - the face wasn't visible.
"I remember the reflection of the eyes, I remember them being bright and I could see them strongly."
Asked if she knew the person had been following her from Stratford, Ms Oni replied: "Not at all."
She continued: "I saw the black figure and jumped within myself and I remember looking and thinking, 'When did that get there?'
"I just thought I just wanted to cross the road and get home.
"I looked both ways and as I turned my head I felt a massive splash on my face.
"I immediately felt like somebody was trying to kill me and so my instinct was to run as fast as I could to get home - and that is what I did."
Ms Oni began sobbing while recalling the incident and was led out of court room in tears before Judge David Radford adjourned for a break.