It's everywhere the same. After some rare or special crimes, like elder people killing suddenly there wife, mothers drowning their own child,… then you see that two or three similar cases occur in the following weeks. Disturbed and desperate people, after reading the articles in the papers, on internet,… or seeing the reports on TV about such events, will do or will try to do the same. Don't worry: it's not typical for Israel, but it's a global phenomenon.