The Bible is decidedly pro life in many respects. The life of the spirit and, therefore, personhood, exists both before conception and after death. The life of the material body exists when it breathes. The life of an animal is in its blood, the Bible says, and God holds us accountable for our life's blood.
Premeditated murder is punishable by death.
There is a purpose for each person being on earth and it disrupts God's plans if someone takes their own or another's life. But certain crimes also disrupt God's plans. In over 25 instances, the Bible says the breaking of God's Law incurs the death penalty. Jesus taught that anyone who causes the downfall of a child who has faith in him would be better off dead. The Bible also reports that God told the Hebrews to attack certain nations and kill even their women and children.