Why a 90 day waiting period? Do you have any evidence 90 days will reduce any gun violence? 

For the background check are you suggesting if I give my son a gun he must undergo a background? I don't mind gun shows being held to that standard, but I personally will not be. What effect will that have on criminals getting guns?

What level of training must I have before you will permit me to own a gun? Expert? Marksman? 3 day course? Will criminals be allowed training? If not, how will they be stopped from having guns.

People being held accountable for child tragedies, fine, I'm in. But explain how that reduces gun violence.  Sure it punishes some idiot for letting his 3 year old play with a weapon. But do you think time in jail is a larger deterrent that a dead child? 

Nothing you propose seems to effect or target the cause of the problem? it is all aimed at the gun. So tell me how, as long as guns exist, will you stop gun violence? Answer- Take all the guns!