Wally;
I believe you are saying "True."
Though it is apparent that Cain had very bad feelings toward his brother I always assumed he had not intended to kill Abel but did so in a momentary fit of anger.
"Cain invites Abel to walk with him in the fields, and he there gives utterance to his unbelief and his murmuring against God. He claims that he was doing well in presenting his offering; and the more he talks against God, and impeaches his justice and mercy in rejecting his own offering and accepting that of his brother Abel, the more bitter are his feelings of anger and resentment. " {ST, December 16, 1886 par. 11}
"The spirit of Satan had entered into Cain. Satan was an accuser, and Cain began his evil course by accusing God of partiality and injustice. Satan was a deceiver, and Cain deceived Abel by inviting him into the field when murder was in his heart, that he might do the dark deed in secret. Satan "was a murderer from the beginning;" and he instigated Cain to do the same cruel work. "He is a liar, and the father of it;" and here, too, Cain showed himself an apt and proficient pupil. " {ST, December 16, 1886 par. 15}