I knew no good could come of this...
The youngster, from Houston, Texas, was found dead in his room on New Year's Eve, having tied a slipknot around his neck while on a bunk bed.
Police said the death appeared to be accidental and that Sergio, described by relatives as a happy child who was very curious, had been "experimenting".
The day before, he had watched the news of Saddam's execution on TV with an uncle.
Alarm Over Copycat Deaths Why are we allowing children to watch people be executed on TV?