A young American woman sexually assaulted while walking in Melbourne has broken her silence about the "terrifying" night-time attack which has left her afraid for her life.
Jessie, 21, was heading home along Gatehouse Street at Parkville at about 2.30am on March 28 when a man grabbed her from behind and threw her to the ground.
"I was terrified. It was the most terrifying experience I have ever had," she told journalists on Wednesday.
"I felt like I was fighting for my life, in a way."
A composite image of her suspected attacker - who ran away after Jessie refused to stop screaming - has been released as police continue to hunt for him and call for witnesses.
"He threw me to the ground and then very quickly got on top of me and I was trying to get away. He was hitting me and punching me and kicking me," Jessie said.
"I was just screaming 'help' on repeat.
"He was doing everything in his power to get me to stop."
The suspect is thought to be aged between 25 and 35, with olive skin and a muscular build, and was wearing a blue or grey hooded jumper.
Senior Sergeant Brendan Butland has not ruled out any connection between the attack on Jessie and the death of a woman, whose body was found at a nearby Carlton North soccer field early on Wednesday.
"We're keeping an open mind, but there are no known links (between the two cases)," he said, adding those working on the assault case were consulting with the homicide squad.
Sergeant Butland labelled the attack on Jessie "disgraceful" and "vicious".
While 10 witnesses who came to her aid have been interviewed, police want to hear from anyone else who saw the suspect.
The assault has left Jessie jumpy, afraid to walk home at night and less trusting of people.
She is also afraid the man will attack someone else if he's not caught.
"He should go to jail, and he needs years and years and years of therapy."