He has been charged and the death penalty has already been sought in this case. It has been mentioned over and over now for days on all news services. This fact is not in dispute.
What one person calls jumping the gun, another calls planning ahead. Good lawyers build their careers around playing the long chess game to the last move, particularly in high-profile litigations like this one. If it means opening with a strong hand and they think it can benefit them 20 moves down the line, you can bet they will.