I have detailed thoughts supporting each of these, but we live in an era of TL:dr. So to encourage you to read this, and maybe to care and act, here are the key points of the plan:

1) Make the death penalty the law of the land for any violent crime, which I hereby define as child sexual abuse and up, regardless of the age of the assailant. No plea deals.
[Federal law]

2) Eliminate or supersede laws that prevent the state from helping the mentally ill if they or their families “don’t want to be helped.”
[Federal law]

3) Force schools to address the serious bullying that has provably and directly led to a number of these shootings. Schools who ignore issues and do not immediately engage law enforcement face legal action.
[Federal-state-local action]

4) Enact serious gun control including a ban on all semiautomatic weapons and high-capacity ammunition — not just AR-15s but any handgun or long gun that shoots many rounds in seconds — and a mandatory federal buyback program to compensate owners for the multitude of these weapons that are already in the field. “Then only criminals will have them”? See #1 above.
[Federal law]

5) Make parents financially and legally responsible if any immediate family member ever commits a violent crime.
[Federal law]

6) Return freedom of voluntary (not mandated) prayer to the schools and all public places.
[Federal law]

7) Return the every-morning Pledge of Allegiance to schools.
[Federal law]

8) Ban assault media. Get serious about banning or seriously limiting violence in all forms of entertainment from gaming to TV to movies to music.
[Federal law]

9) Install metal detectors at the doorways of schools, malls, theaters, and other currently-unprotected public venues.
[Federal-state-local action, public-private partnership]

10) Hire expert marksmen/sharpshooters for all schools, malls, movie theaters, and other currently- unprotected public venues.
[Federal-state-local action, public-private partnership]

11) If anyone breaks into any public or private place, or even without breaking in pulls a weapon on anyone in any public or public place, any citizen and anyone acting on their behalf has the right to injure or kill the threatening party without being prosecuted.
[Federal law]

12) No one who is hurt or killed while they themselves were in the commission of a criminal act as described in #11, nor their families or friends, nor anyone else on their behalf, shall be allowed to bring a lawsuit or negative action of any kind against those who hurt or killed the criminal.
[Federal law]

13) Provide tax breaks and vouchers so every family everywhere is free (and supported) to choose homeschooling or charter schools instead of public schools.
[Federal law]

14) Ban movie or book deals, or any form of compensation that originated from a violent crime, to the criminal and his or her family as far as their family tree goes, any friends or associates, or anyone acting on his or her behalf.
[Federal law]

15) Restrict media mentions of the names of those who perpetrate mass shootings to only once on each media entity’s first mention of the crime.
[Federal law]