Guns are tools to achieve a certain end and as any tool can be misuused, guns are no different. If one is set upon the death of another and one tool is not available another will be used.
Most gun crimes in America are committed by people using illegally owned guns and by people who suffer from drug use, a failed education systen, a failed family unit, a society that has been taught that they are somehow entitled to take what they have not earned, a society that has lost respect for itself, others and authority.
The Founders of America had little faith in government to maintain itself short of totalitarian rule and I share that sentiment. Totalitarianism is in the DNA of all government structures and to prevent that is a well armed citizenery.
"No Free man shall ever be debarred the use of arms." (Thomas Jefferson, Proposal Virginia Constitution, 1 T. Jefferson Papers, 334,[C.J.Boyd, Ed., 1950])
""Congress have no power to disarm the militia. Their swords, and every other terrible implement of the soldier, are the birthright of an American... The unlimited power of the sword is not in the hands of either the federal or state government, but, where I trust in God it will ever remain, in the hands of the people" (Tench Coxe, Pennsylvania Gazette, Feb. 20, 1788)
Perhaps, the argument can be made that times have changed, but I would think that it would be a false argument, as government remains the insatiable beast it has always been.
To be serious about the increase in gun deaths one needs to look at the cause and not the tool.