Scam artists have started to prey on the memories of those who were killed in the school massacre in Newtown, Conn.

Family members of Noah Pozner were grieving for the 6-year-old when they learned that someone was soliciting donations in the boy’s memory. A website had been set up with his name, even including petitions on gun control. It was a scam.

Noah’s uncle, Alexis Haller, called it an outrage and reported the action to police.

Consumer groups and government officials call for caution about unsolicited requests for donations, by phone or email. They tell people to be wary of callers who don’t want to answer questions about their organization, who won’t take “no” for an answer, or who convey what seems to be an unreasonable sense of urgency.