The Mid Scotland & Fife MSP criticised the “casual” and “ignorant” manner in which Lowe spoke about the tragedy.
He said: “That tragedy changed Scotland forever. To speak so casually about an event that still causes such profound pain is both callous and indefensible.
“He should withdraw those remarks and apologise.”
On 13 March 1996, gunman Thomas Hamilton entered the gym of Dunblane’s primary school and murdered the 16 children and their teacher.
Another 12 children and three adults were shot or injured. All but two of the children were aged just five and six.
The Snowdrop campaign that followed led to the UK enforcing some of the strictest firearms legislation in the world.
