Sent to the juvenile reformatory center in Elmira for robbing a sub shop out of desperation and hunger after sleeping on the streets of New York City.

[1] Boncore also acted in roles in the TV series Men In Trees, Alice, I Think and Da Vinci's City Hall, and in the films The Last Rites of Ransom Pride (2010) and Deepwater (2005).

[1][3] Although 43 people died during the five-day siege, including ten hostages taken by inmates, Boncore was the only person convicted of murder in the aftermath.

[1] Boncore later joined the American Indian Movement and returned to the media spotlight during the 31-day Gustafsen Lake Standoff by First Nations land claims activists in British Columbia.

[1][2] Media reports indicate he is believed to have died on March 12, 2013, after falling on cement steps and possibly suffering a blow to the head.