As I mentioned in a post earlier this month, anti-gun folks want to keep the most vulnerable members of society disarmed, while doing nothing to combat predatory violence.
Men like Antonio Smith, a paraplegic who was murdered in Wilmington don't matter to anti-gunners except as a statistic they can trot out as a victim of "gun violence." Gun laws didn't make one bit of difference to his killer, already a felon who surely had a long rap sheet. All gun laws accomplish is to sway the balance of power in favor of these scumbags who have no regard for human life.
Imagine Delaware had constitutional carry. The lowlife scumbag Mr. Holmes would still be armed, yet now Mr. Smith wouldn't have to jump through any hoops to keep a pistol in his pocket. Anti-gunners would never stand for that. They'd rather see Mr. Smith dead than see men like him free to carry tools necessary for self-defense.