|Noah Kosalka. (Supplied Photo)
MILTON, Ont. -- Residents in a sprawling neighbourhood were horrified Sunday after police revealed a man killed the young son he often played with before committing suicide.
"I can't believe that," Michal Chorobik, who lives behind the police-guarded Clark Blvd. duplex 40 km west of Toronto where the bodies were found after someone inside called 911 Saturday.
Police identified the pair as Wojciech Kosalka, 43, and his son, Noah, 6.
A stuffed rabbit and pink rose along with a candle jar were left as a tribute outside the Thompson Rd. S.-Derry Rd. W. area home,
"Something just doesn't make sense," Chorobik, 27, told QMI Agency. "The relationship seemed normal and fine.
"I'd see them in the back yard, playing together," he said. "The mother was around, but it always seemed to be him and Noah more."
Police have not disclosed how they died or the status of the person who contacted police.
Sgt. David Cross said in a statement that the deaths "have been ruled to be as a result of murder-suicide."
Chorobik, who works for a Toronto security alarm firm, said "nothing like this has happened since we've been here, and that's five years."
He said Kosalka told him he was a chef.
Neighbours said they have not seen Noah's mom since before police cordoned off the house.
Residents know her only as Tanya, a teacher.
The family previously owned the house and moved back in about three years ago, after living briefly with her parents, Chorobik said.
"They kind of kept to themselves," he said of the couple. "Nothing appeared unusual Friday evening ... I could see the TV was on."
Noah's death "just leaves an ache in your heart," Chorobik said.
Across the street, Zainab Ghori, 12, said she was "scared" and couldn't sleep after watching police at the Kosalka house.
With tears running down his cheeks as his mother comforted him, Noah's next-door playmate, John Zaia, 9, said "we were good friends ... it's sad." The boys often played together in each other's homes or a nearby park.
Noah had a lizard and often played the game Pizza versus Skeltons on his iPad, John said.
An older couple, believed to be the dead boy's grandparents, were seen by neighbours as they walked out carrying what appeared to be a child's blanket.