His story makes zero sense. He claims ALL cyclist ride down the hill at a great speed and blow the stop sign. As if.
He claims your son was riding at a great deal of speed after going down the hill yet your son wasn't even thrown off his bike after being hit. He states your son was able to scrap the car and still managed to turn to the right and drive around the car.
He admits he saw two boys on bikes, but when he looked in his left mirror he only saw one, yet he knew there were two boys. He claim he never saw you son in his right mirror, so where was yor son? He claims your son hit the right side of your car.
He claims he never saw your son, but saw two boys seconds earlier, and still made the turn without bothering to look over his shoulder dispite admitting his car hs blind spots.
He admits its a dangerous intersection and admits he knows bikes blow the stop sign yet he failed to use due care when turning. He also failed to mention that he signalled, because he knows he never signaled.
142. (1) The driver or operator of a vehicle upon a highway before turning to the ... right ... into a private ... driveway shall first see that the movement can be made in safety, and if the operation of any other vehicle may be affected by the movement shall give a signal plainly visible to the driver or operator of the other vehicle of the intention to make the movement.