A Brantford man who sexually assaulted multiple people, including a 14-year-old girl, has disappeared from a correctional facility in Kingston.

Kingston Police say David Maracle went out the window of the Henry Trail Correctional Facility. He was last seen around 8 p.m. Sunday, walking away from the building.

Maracle, 51, is a repeat offender and is considered dangerous. He has been convicted of kidnapping, sexual assault, and several other crimes relating to attacks on women in Brantford in the 1980s and 1990s.

The final attack occurred in 1997, when he kidnapped a 14-year-old girl at gunpoint and sexually assaulted her.

His prison term came to an end about a year ago but because he was classified as a long-term offender, he was kept at Henry Trail, where correctional staff are present around the clock.

Officials say Maracle appeared to be doing well in the rehabilitation process and are surprised he took off.

"This individual has been doing fairly well. The reasons why he would choose to walk away from the facility are unclear today," said Brian Wheeler, Director of the Kingston Parole Office.

Maracle is from Six Nations and still has family there. Around 1 p.m. Monday Six Nations Police responded to a possible sighting of Maracle but determined it was not him.

Acting Staff Sergeant Marwood White says Six Nations Police are helping with the investigation.

“We will assist in any way that we can and hopefully get him back into custody as soon as possible, safely,” White said.

Police describe Maracle as being aboriginal, 5’10” and 200 pounds, with short, dark hair. He was last seen wearing green/grey cargo pants, a white T-shirt, and a dark jacket or sweater.

Police say anyone who sees someone who matches Maracle’s description should call 911 immediately.

With reporting by Nicole Lampa