When Carrie and Al are in the backyard and start to chase Shawn, they run straight into the bins Shawn pushed over to block them.
They'd of been quicker going round them.
Carrie and Al discussing how to make a case against Cordero for the rape is a moot point; when the statute of limitations on first-degree rape was lifted in 2006, it was only retroactive back five years to 2001, so any crimes occurring before then, like the rape in 2000, can't be prosecuted.