The group cited studies that found that media violence has been a factor for some mass killers and recommended regulation of video games, including requiring parental permission for minors who want to buy games rated "mature" or "adults only."
The report also calls for a broader system to help people with mental illness or addictions and those in crisis and to launch a public campaign aimed at destigmatizing mental illness.
When it comes to school security, the task force treads carefully, saying that having armed security officers or police in school "might unwittingly raise, rather than alleviate, the level of anxiety about gun violence."
"High-visibility tactics that are intended to chill potential mass shooters may also have a chilling effect on the children we seek to protect," it said.
Christie took a similar stance amid earlier calls for more armed school personnel.
But the report praises existing resource officer programs, in which armed police officers are regularly in schools, and says such programs could be expanded. It suggests leaving decisions about officers in schools to local school officials.
Follow Mulvihill at http://www.twitter.com/geoffmulvihill