Arruza also told the jury that Jay-Quan Mosley would have suffocated after being placed in a trash bag which was tied over his head, but said that can't be confirmed as his body was never recovered.
Kuritz questioned the prosecutor's theory about Mosley's supposed motivation and said some of Griffin's statements to police were inconsistent.
The defense attorney said police were under extreme pressure to make an arrest in the case and focused on Mosley.
"The family anointed Mr. Mosley as the easy target," Kuritz said. "They made an arrest to fit into their theory."
After his arrest on the charges, Mosley denied any involvement in the deaths and said he was not the infant's father.
The trial is expected to continue into next week.
- November 9, 2005: Prosecution To Seek Death Penalty In Deaths Of Mother, Child
- November 7, 2005: Man Goes On Trial For Allegedly Killing Woman, 10-Month-Old Son
- July 2, 2004: Prosecutors Seek Death Penalty For Man Accused Of Murdering Woman, Infant
- May 28, 2004: Man Accused Of Killing Woman, Infant Pleads Not Guilty
- May 7, 2004: Mosley Charged With Killing Ex-Girlfriend, Baby
- May 6, 2004: Mosley, Teen Charged With Murder; Landfill Search For Baby Ends
- May 3, 2004: Police Search South Georgia Landfill For Baby's Body
- May 3, 2004: Mosley In Court For Paternity Hearing
- April 30, 2004: Mosley Jailed; Investigation Into Missing Woman, Baby Continues
- April 28, 2004: More Police, Volunteers Search For Missing Mom, Baby