The man originally charged in the death of a Hamilton man, is now facing murder charges in two other previously unsolved cases.
Dellen Millard is in custody in Hamilton, awaiting trial on first degree murder charges in the death of Tim Bosma.
Toronto Police say they worked with other police forces on the case, dubbed 'Project Capella' using resources from Hamilton Police and the OPP.
The 28 year old Millard is now facing first degree murder charges in connection with the death of his father, Wayne and his former girlfriend Laura Babcock.
He was the last person to speak with Babcock before she disappeared, back in 2012.
Wayne Millard was shot to death in 2012. His death had previously been ruled a suicide.
Dellen Millard went on to inherit the aviation business as a result of Wayne's death.
26 year old Mark Smich is also facing first degree murder charges in the death of Bosma, but now faces further charges of murder in connection to Babcock's death.
Smich is being held in Hamilton and awaiting trial.
But Police have also charged a 21 year old Toronto woman with accessory after the fact of murder in relation to the Bosma death.
Christina Noudga appeared in court on Thursday.
Bosma was the man who went missing in Hamilton, after trying to sell his pickup truck.
He disappeared after going on a test drive with someone who was interested in purchasing the vehicle.
On Thursday, April 10, 2014, at 3 pm, at Police headquarters, Staff Inspector Greg McLane will update the media on actions taken by the Toronto Police Service today on Project Capella.
Project Capella is a multi-jurisdictional, Major Case investigation into the homicide of Timothy Bosma, the disappearance of Laura Babcock, and the death of Wayne Millard.