Laura Hale

Laura Hale was Derek Hale’s sister.

Derek believes she was killed and cut in half by The Alpha as a way to get him to return to Beacon Hills.

The discovery of half of her body at the beginning of Wolf Moon leads Scott McCall and Stiles Stilinski into the woods on the night Scott is bitten by the Alpha.

Derek says Laura was an alpha werewolf, meaning that she could become more fully a wolf than Betas like him or Scott.

The top half of Laura’s body was buried at the Hale home surrounded by a spiral of wolfsbane studded rope.

The majority of the Hale family was killed in a fire, with the exception of her uncle, Peter Hale who was left comatose and badly scarred.

In Wolf's Bane, Peter Hale admits he killed Laura but claims he did not know what he was doing at the time.

She is seen alive in Co-Captain in a flashback, finding Peter in the woods beginning to transform into a werewolf.