That basement became quite a killing place, he was murdering them, and not with clean shots.
They were unarmed, and first he would wound them below the waist, he seems very much in control of the situation, and very deliberative, I think it is OK to guess that he was talking to them while he was killing them, the execution shots were close, intimate, and in the face, as they lay on their backs, on the floor looking at him.
“”Wetzel said that while the shootings happened on Thursday, Smith waited until Friday to report the deaths, explaining that “he didn’t want to trouble us on a holiday.”
In the complaint, Smith said he was in his basement when he heard a window breaking upstairs, followed by footsteps that eventually approached the basement stairwell. Smith said he fired when Brady came into view from the waist down.
After the teen fell down the stairs, Smith said he shot him in the face as he lay on the floor.
“I want him dead,” the complaint quoted Smith telling an investigator.
Smith said he dragged Brady’s body into his basement workshop, then sat down on his chair. After a few minutes, Kifer began coming down the stairs and he shot her as soon as her hips appeared, he said.
After shooting her with both the Mini 14 and the .22-caliber revolver, he dragged her next to Brady. With her still gasping for air, he fired a shot under her chin “up into the cranium,” the complaint says.
“Smith described it as `a good clean finishing shot,’” according to the complaint.
The next day he asked a neighbor to recommend a good lawyer, according to the complaint. He later asked his neighbor to call the police.””
He may have caught them breaking in and then took them down into the basement, interrogated them about where his stuff was, and then executed them. I wouldn't doubt that for a moment with this guy .
And I find it hard to believe that the girl would come down into the basement after hearing the gunshots and would not have been hightailing it out of there.