Selena Crosscroft is smart, driven and clearly devoted to her boyfriend, Roger Hammond.

But can she vouch for his whereabouts at the time his ex-wife was murdered?

Examine the evidence, and share your theories in the forums and the comments.

Everyone knows that Missy Hammond's divorce was ugly, and the battle over custody of their daughter was heated.

Now Missy is dead.

Where was her ex that day?

Examine the evidence, and share your theories in the forums and the comments.

Seven-year-old Liddie's grandparents brought her home one evening, and she found her mother "asleep" in bed.

When her grandfather arrived the next morning, her mother still hadn't woken up.

What happened to this young mother? How much did this child witness?

Examine the evidence, and share your theories in the forums and the comments.

Gloria Hammond, Missy's former mother-in-law, never had much use for Missy, even she was still married to her son.

After Missy and Roger divorced, relations got even frostier — until Gloria realized that Missy was the gatekeeper standing between her and her granddaughter.

They reached a kind of detente that let Gloria and her husband, Thomas, see seven-year-old Liddie.

Now Missy is dead, murdered in her own home.

How sad do you think Gloria Hammond is about it?

Examine the evidence, and share your theories in the forums and the comments.