In the wake of the Casey Anthony trial, four states are drafting legislation to force parents to report missing children in the first 24 hours — creating what has been dubbed "Caylee's Law."

The Daily Mail reports that lawmakers in Florida, New York, Oklahoma and West Virginia will propose versions of the legislation, spurred by nationwide fury over the acquittal of Anthony on charges that she murdered her two-year-old daughter Caylee.

Casey Anthony, 25, should be freed from jail next week after being sentenced to four years for lying to police investigating her daughter's death. Anthony has already served three years in custody, mostly in isolation.

Caylee was reported missing July 15, 2008, a full month after her family says they last saw her, on June 16.

An Oklahoma woman started the online petition, Fox News reports. The Caylee's Law petition went viral, collecting more than 300,000 signatures by late this week.

Sen. Nancy Jacobs of Maryland said she received nearly two dozen emails from constituents in the days following the verdict asking that she review Maryland law and find a way to criminalize the act of not reporting the death of one's child, Fox reports.

Jacobs' version of the law would "make it a felony for a parent, legal guardian or caretaker not to notify law enforcement of the death of a child within a short period of time after the death is discovered".

In Florida, meantime, several lawmakers filed "Caylee's Law" this week, while other proposals were reportedly either filed or in the works in North Carolina, Kentucky, Pennsylvania, New Jersey and other states.