The fire marshal entered the residence Tuesday afternoon and worked into the evening.

The investigation into the cause of the fire will continue tomorrow.

Investigators remain interested in speaking to witnesses. If you have any information that may assist with this investigation, please contact Detective Ben Adams at 905-546-3836. To provide information anonymously call Crime Stoppers at 1-800-222-8477 or submit your anonymous tips online at http://www.crimestoppershamilton.com"http://www.crimestoppershamilton.com.