What can we tell people who want to hurt peaceful people?

What solutions would you give to all the menaces our world lives: terrorism, bullying, gender-based violence, child abuse...? 

Here's my piece of advice:

 

Bullying is for losers

Another article sent by Laura Leliugaite about this horrendous case.

Amanda Todd Memorials For Bullying Victim 

...and these two other articles I found about the case:

Amanda Todd's mother speaks out about her daughter, bullying 

Social media users outraged that bullying continues on memorial page for Amanda Todd

To end, please watch this video by Lady Gaga :   Bullying is for losers

Now what is your opinion about the issue????

José Julián sent me this article: How girls bully (and it is also interesting to watch the video he enclosed in his comment)