S, Ont. - Police in St. Catharines, Ont. say a 43-year-old man is wanted for first degree murder in connection with the death of his stepson.
Dumas found her seven-year-old son Nathan Dumas, who is Kuijers stepson, critically injured. Police did not immediately reveal the cause of death.
He is also wanted in a case of attempted murder, according to Phil Gavin, Niagara Regional Police Media Relations Officer.
Phil Gavin said police would apply for the warrants this morning when the courts open, and that the 43-year-old Kuijer is still considered to be armed and unsafe.
Gavin noted that police hope the search for Kuijer will come to a "peaceful resolution".
A GoFundMe page launched on Saturday to help pay for the boy's funeral costs has surpassed its $10,000 goal on Sunday.
"A situation like this, it impacts the community, it impacts the family", he said.
"It's a bad situation for her, but we're doing what we can to support her", Gavin said. They also said the victim and Kuijer were known to each other professionally. He was rushed to hospital where he died the next day.
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"The principal of the school has been in touch with the family to let them know we're here for them", she said. "She is certainly supportive and we are doing what we can to protect her with Mr. Kuijer still outstanding", Gavin said. "Nathan would have made a big difference in this cruel world". "But we can't do that (donate Nathan's organs) because of the measures they took to try and save his life".
Investigators said Kuijer was last seen driving a dark grey 2009 Pontiac Montana van with the license plate BYTE392. Her name and the hospital she is at are not being released as a security precaution while Kuijer remains at large, Gavin said. On the rear driver's back window was a pink floral tribute sticker that read #FINDINGASHLEYSIMPSON.
As of Monday morning, police said they still don't know where Kuijer may be headed.
Police described Kuijer as armed and unsafe.
He urged Kuijer to turn himself in peacefully.
Kuijer was last seen wearing an orange hoodie under a brown leather coat, dark trousers, a black toque, and boots, police said.
Kuijer is described as a white man, with a thin build, trimmed beard and longer dark hair. He was wearing a black toque, brown leather coat, dark trousers, boots and an orange hoodie.