Texas police suspect a killer is on the loose

when the bodies of four women are discovered

by the side of a highway.

Ashley and her mother Kristine are meeting to

co-sign a lease for an apartment, but alarms

are raised when Ashley never shows.

Nikki Sue Entzel dials 911 to report a fire at her

home, but the supposed accidental house fire

turns into a murder investigation.

When Kemia Hassel calls 911 cradling her dying

husband, detectives have no idea that they'll

soon unravel a sinister murder-for-hire plot.

Letecia Stauch reported that her 11-year-old

stepson hadn't come home, but what followed

was a trial of deceit, secrets and murder.

Gretchen Anthony's family grow suspicious

when they receive odd texts from her phone,

before things take an incredibly sinister turn.

Festival goers dressed as zombies got a real

fright when shots started ringing out in the

crowd.

Dozens of rich older women seemed to die

peacefully in their sleep, until detectives

realised it was the work of a serial killer.

A husband calls emergency services to report

that his wife has shot herself, but secretly

recorded tapes uncover a different story.

After hosting a barbecue, two people were shot

dead in their driveway - but the identity of the

killer was even more shocking.