ALL Life Belongs To God. God Is A Spirit ! The MOST HIGH & ALL KNOWING. ALL People Are Created For Eternity. When We See What We See As Tragic & A Awful Loss, It Is Us Living In The Element Of Time Wile We Are Here. We See Life In One Dimension From A Carnal Standpoint. God Is ALL In ALL Far Above Anything We Could Ask or/ Even Think. When God Gives Life. Every Life Is Eternal. EVERY Living Soul That God Has Ever Created IS ACCOUNTED FOR And Living. God Sees Lives Merely Moved From One Place To Another. We See Loss. God HAS All. God Loves You & Jesus Came & Died For You. You Are Made To Live Forever, But YOU Choose Your Way.
That question is a bit loaded, and comes from assumption that it is ending life ceasing it to exist. The "question" put into another form, is; Is it wrong for God, to take me from my fallen state on earth, and bringing me into Heaven with a new glorified body and life everlasting? The "killing" is bringing us from earth to Heaven (and yeah some don't wanna go there).
I think one important point is that if God IS actually God, then does that change the equation? Are we putting "human" moral standards on the creator of heaven and earth, and does that really work?