Centaur's Last Breath

A centaur is killed by an assassin. Who hired the assassin? And why?
The centaur, Selo Cezerus, was a willful and thoughtless creature who caused havoc wherever he went. He made enemies in the centaur community and amongst the residents of Brimstone.
Cassia Winter, a justice witch, investigates Selo's murder with help from her cat, Stanley. They are confronted with a long list of suspects.
Was Selo killed by a jealous family member?
Or had one of his rivals put an end to his life?
Another murdered body turns up which forces Cassia and Stanley to go in a new direction.
With one unexpected twist after another, Cassia despairs of ever finding the killer.
A puzzling mystery with a twist at the end.