Detective Chief Inspector Rob Widdowson said: “This man is likely to have vital information for us, and I urgently need to know who he is.
“If the man in the footage is you, you need to come forward without delay. If you know who this man is, you need to tell us.”
Detectives have now established that the woman was walking from Granville Road across the park towards Victoria Park Road at around 11.40pm when the attack happened.
As she neared Victoria Park Road, she was attacked, dragged into some bushes and suffered an horrendous assault.
DCI Widdowson said: “Whoever carried out this attack is clearly dangerous and must be caught without delay.
“He will have gone home last night covered in his victim’s blood and today he is likely to be highly agitated and may well be behaving out of character.
“This young woman is today fighting for life in hospital and we need the public’s help in identifying the person who did this.
Anyone with information, or who can identify the man in the footage, is asked to contact Leicestershire Police on 101 quoting incident 536 4 July 2017.
