Justin Kuijer will face a charge of first-degree murder when he is lead into a St. Catharines courtroom Thursday.
The Chief of Niagara Regional Police made the revelation the day after Kuijer was arrested some 2,000 km from home after five days on the run.
Kuijer is accused of killing his seven-year-old stepson Nathan Dumas in his home on Friday morning. Police believe Kuijer then drove to an RBC branch and stabbed an employee an employee of the bank. Police say Kuijer and the woman had a "professional relationship" but have not elaborated.