Tell why mrs larbey was angry when the the scrowers were released

Mr. Larbey was murdered by the Scowlers.

As her husband was also murdered by the scowrers

Although the evidences put the scowrers in clear, but Mrs Larbey still declared them as "damned murderers" because her husband, Mr Larbey had to meet a violent end beacause of these scowrers. They murdered him brutally in front of Mrs Larbey.