Psychologist paints portrait of William’s kidnapper

A FORENSIC profiler has painted a picture of the type of person who might have abducted toddler William Tyrell, one year after his disappearance.

The three-year-old was last seen playing on the veranda of his grandmother's home in regional NSW when detectives believe he wandered into the path of his kidnapper.

Criminal analyst Sarah Yule believes the suspected abductor must have had another reason for being in the quiet street at the time.

"With the investigation focusing on a possible abduction, there was only a narrow window of opportunity to take William," she said.

"In addition, the area where William vanished is on the edge of the township near a dead-end street.

"So if no one but William's parents and grandmother knew in advance of his visit to Kendall, then you would have to have some other reason to be there and take that opportunity, either visiting, residing or working in the vicinity."

Head of the investigation, Detective Inspector Gary Jubelin, added the kidnapper must have taken tremendous risks.

"The kidnapping occurred on a Friday around 10.30am," Detective Inspector Jubelin said.

"It was broad daylight and whoever abducted him risked being seen from the balcony of William's grandmother's home as well as neighbouring properties."

Walk for William events were held around the country to support the search for the missing boy.

- APN Newsdesk