Witnesses told police they heard "squealing tires, and the vehicle came to a stop," Stoddard testified. Harris got out of the car yelling, "Oh, my God, what have I done?" Stoddard said.

The 33-year-old father then stood there with a blank look on his face, the detective said. When a witness told Harris his son needed CPR, Harris went to the other side of his vehicle and made a phone call, apparently to tell someone his son was dead, a witness told police, according to Stoddard.

Harris never called 911, and when an officer told him to get off his phone, he refused and even said, "F*** you" before an officer took his phone and handcuffed him, the detective said.

He also alleged that Harris told police he couldn't reach anyone on his telephone, but phone records show that Harris made three calls after he discovered his son's body, and one between him and his employer lasted six minutes, Stoddard said.

However, witness Leonard Madden offered a different version of what happened. Madden and an acquaintance were leaving a restaurant when they noticed a commotion and approached within 3 or 4 feet of a clearly distraught Harris.

"He was crying. He was hollering," Madden testified, recounting the father saying, "Oh, my God! Oh, my God, my son is dead!"

"I felt his pain; I even wept," Madden said.

Strange behaviors

According to Stoddard, Harris made statements that police felt were strange, including "I can't believe this is happening to me" and "I'll be charged with a felony."

"It was all about him," Stoddard said. "'Why am I being punished for this?' It continued. It was all very one-sided."

The detective said Harris talked about losing his job. He testified that messages between the Harrises indicate the two were having financial problems.

Ross Harris had recently been passed over for a promotion, and the couple had two insurance policies on Cooper, one for $2,000 and one for $25,000, the detective said.

Stoddard also testified about how Leanna Harris acted when she arrived at a day care enter to pick the boy up and employees there told her Cooper had never been dropped off.

"Ross must have left him in the car," she replied, according to the detective. Witnesses said they tried to tell her many other things could have happened, but Leanna Harris insisted that Ross Harris must have left the boy in the car, Stoddard said.

He also testified that when Ross and Leanna Harris were in an interview room, Ross Harris told his wife that Cooper looked "peaceful" and that his eyes were closed when he was removed from the vehicle. He told his wife, "I dreaded how he would look," Stoddard said, noting how Harris had used the past tense.

The detective added that the boy's eyes and mouth were not closed when he was taken out of the SUV.

At another point in the interview room, Stoddard said, Leanna Harris asked her husband about what he had said to police.

"She asked him -- she had him sit down, and he starts going through this. And she looks at him, and she's like, 'Well, did you say too much?' " the detective testified.

'Nothing was weird'

While prosecutors painted Ross Harris as a terrible, in fact criminal, father, the defense called witnesses who testified on his behalf.