Incorrect, some on the left are calling for gun control while others want a dialogue on how this kid got to the point he came to. A very small minority on the right wants more guns, rather the majority wants people who don't have a full understanding of the arms subject to leave legitimate guns owners and the tools alone. It's that simple. Oh, and the majority on the right ALSO wants to know how this kid came to the violence that was engaged. Both sides rational voices are absolutely disgusted by what happened and that is the appropriate response.
Everything has a purpose and illicit use. Hammers drive force through objects, swords and knives cut, other tools pierce, bludgeon, tear, rend, etc. but can do so to human or animal flesh as well. Whether someone ****s up another human being with a gun, knife, sword, axe, battle axe, halberd, chinese star, etc. it is a usage, not the purpose. Now, the only thing I know of that is specifically designed to kill is poison, it has no other use.