Question: gun control/mass shootings

There could be a false cause (also known as questionable cause, confusing correlation and causation) fallacy there, since the correlation between gun control and mass shootings is asserted as a causation. If the arguer goes on to logically justify or provide evidence for the causal link between gun control and mass shootings, his argument won't be fallacious anymore.
The Questionable Cause Fallacy: https://www.logicallyfallacious.com/tools/lp/Bo/LogicalFallacies/148/Questionable-Cause