There's an unexpected knock from a stranger at the front door. What to do?

1. Be cautious when opening the door. Do not blindly open the door to see who it is or what it is that they want.

2. Ignore the knock on the door . You may want to go about your normal business and NOT pretend that you are not home, but instead continue to do what you were doing, or even make some noise or turn on a light so that the person knows that someone IS home (possibly avoiding a burglary).

3. Look out a window first to see who it is - Avoid looking out a door window, but instead go and look through another window away from the door if possible. If you don't recognize them, you could shout through the door and ask what they want, or you could choose to ignore them.

4. Set the door chain. Be sure that your door chain is set well with LONG screws into the door frame to help resist a "push in." Crack open the door to speak to the person through the gap.

NATOMAS, Calif. - Sacramento police detectives are investigating the grisly death of a 9-year-old boy in his south Natomas home Tuesday night.

The Sacramento Police Department received two emergency calls from a residence on the 2200 block of Atrisco Circle at 11:52 p.m.

According to police reports, officers arrived at the scene and found the lifeless boy inside the home, suffering from blunt force trauma to his head.

Officers established a large perimeter around the residence while speaking with relatives at the scene. Within 15 minutes, the victim's father, 36-year-old Phillip Hernandez, was located walking in a nearby neighborhood and arrested.

SACRAMENTO, CA - A Sacramento businessman found guilty last year of intention to travel to engage in illicit underage sex and child pornography was sentenced 24 years and five months in federal prison.

James E. Johnston, 71, was found to have bought a subscription in February, 2006, to a website offering photographs and videos of child pornography to customers, according to court records. Computer forensic evidence showed Johnston downloaded approximately 300 videos of child pornography, some of which were infants and toddlers being molested.

Additional computer evidence was presented at trial that soon after, Johnston began on online correspondence with a woman from the Philippines. There were messages about Johnston's intent to obtain photos of underage girls he wanted to have sex with and his plans to travel to Manila for that purpose.