Magnificently good point, Guest. It is because the stranger is unknown that people fear the stranger so. They are far more likely to be killed by someone they know well. It is in knowing people for long periods of time that the personal issues and stresses arise which can lead to extreme violence.

Nevertheless, if one stranger kills a child...well...you will be sure hear about it in the media. Bigtime. Because people fear the unknown, and that makes it get major attention.