God has no "parts". The Father is God, fully and completely. So is the Son, and the Holy Spirit.

I am a son, because I have parents.  I am also a father, because I have a daughter.  So, which am I, a father, or a son?  Both!  At the same time.  Which I am depends on your point of view.  God is exactly like that - the 3 in 1 is 3 ways of looking at the 1 God.  Which He is depends on your perspective.  Jesus, the man was killed.  Jesus, the God, was not.

Clearly, you don't understand the Trinity.  I hope this will help you.

The liar is you, along with your god, Satan! Who has brainwashed you and your heart to send you to eternal hell!

The Deity of God is composed, Father, Son, Holy Spirit!

YAHWEH is, one of God's original names, and you, are NOT worthy to Name! Is that clear?

Signed!

Not one "entity" but one nature, one essence, which scripture calls "Divine Nature", "godhead" and "Deity." Example for you to consider: The "Smith" family, consisting of Mr., Mrs. and Jr.. All of them are "Smith"., but still exist as individuals. Think of marriage. "Two and yet one", Gen. 2:24. The Holy Three are three and yet one.

We were created in the image of God. Angels, fallen or not, were NOT created in the image of God.

Gen 1:26 Then God said, “Let us make man in our image, after our likeness. And let them have dominion over the fish of the sea and over the birds of the heavens and over the livestock and over all the earth and over every creeping thing that creeps on the earth.”

Psa 82:6-7 I said, “You are Elohim, sons of the Most High, all of you; nevertheless, like men you shall die, and fall like any prince.”

We have a body of flesh, a spirit given to us by God, and a soul which is the person we are. Our flesh is not our spirit, our spirit is not our soul, and our soul is not our flesh. Yet we are ONE person.

So too, God the Father is not God the Son, God the Son is not God the Holy Spirit, and God the Holy Spirit is not God the Father. Yet He is ONE God.

The problem we encounter is when we try to wrap our finite minds around an infinite God we fail because we simply cannot fully comprehend Him.

Eph 4:4  (God the Holy Spirit) There is one body, and one Spirit, even as ye are called in one hope of your calling; 

Eph 4:5  (God the Son) One Lord, one faith, one baptism, 

Eph 4:6  (God the Father) One God and Father of all, who is above all, and through all, and in you all.

i) God, the Father reconciled the world to Himself. 2 Co 5:19 To wit, that God was in Christ, reconciling the world unto himself, not imputing their trespasses unto them; and hath committed unto us the word of reconciliation.

ii) The Lord Jesus came to redeem us from sin. Col 1:14 In whom we have redemption through his blood, even the forgiveness of sins:

iii) The Holy Spirit washed and regenerated us. Tit 3:5 Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost;

1 Th 5:23 And the very God of peace sanctify you wholly; and I pray God your whole spirit (1) and soul (2) and body (3) be preserved blameless unto the coming of our Lord Jesus Christ.

The Holy Trinity is said to be undivided. That said, only Jesus took on flesh and became man, so only Jesus experienced death.

It is all so hard to grasp.  Try reading about it in the Urantia Book.  It is a bit more complete and lots more information to grasp and try to understand.  

The real question, as I see it, is why do self-proclaimed believers in Jesus attack other believers with insults and name-calling, merely over differences in belief or doctrine

You are ignorant of scripture my son. Jesus had a body of flesh that died. The Spirit of God living within him cannot die.