Still no arrests in the case of a serial sexual offender who police say is responsible for at least three sexual assaults over a 17 month period.
Police are now renewing a plea for the public's help in the case.
Last month police said the man, who is described as being of Middle Eastern descent, with a slim to medium build, and a prominent nose, may be linked to an additional seven unsolved sexual assault cases.
Police have received 350 tips and had identified 120 persons of interest, but still have not made any arrests. The also have not linked the serial sexual predator to any other cases.
"The vast majority of the people that we've approached as persons of interest are very cooperative," said Sgt. Richard Dugal, the lead investigator in the case.
He said speaking with the persons of interest is an ongoing process.
"The people that we've talked to so far have been eliminated," he said.
Now investigators are drawing attention back to one of the seven cases that have not been positively linked to the serial sexual predator.
They've re-released video footage of the suspect wanted in a March 2013 assault on Draper Avenue.
"The best way to determine whether they're related or not to the three that we know are linked is to solve them, actually identify the person responsible," said Sgt. Dugal. "We know that the person responsible for the incident on Draper is depicted in that video. So, we can identify that person and once we've talked to him, we do our investigative process, we'll be able to determine is he responsible for one or more."
Sgt. Dugal said it is a good quality video and that someone out there must be able to identify him.
"We have an opportunity to solve Draper Avenue," he said. "Is that going to lead us to something after? Maybe, hopefully. Maybe not. But I'd be very happy to solve Draper."
Police are also trying to identify an important witness of a sexual assault on Chapman Mills Drive on January 5th. He is described as white, with dark facial hair and a dark, puffy jacket.
It's not clear whether the serial sexual predator is still in Ottawa or is laying low.
"It's still an unknown and I can tell you that we're in communication with other jurisdictions through various methods," said Sgt. Dugal.
Anyone with information is asked to call Ottawa Police at 613-236-1222 ext. 4774 or Crime Stoppers.