in at the kill

in at the kill

 and in on the kill 
1. Lit. present and participating in the killing of prey. The baby cheetah wanted to be in on the kill.
2. Fig. involved at the final moment of something in order to share in the spoils. At the end of the battle, everyone wanted to be in at the kill. The press packed the room, wanting to be in on the kill of the governor's resignation.
See also: kill