MARIETTA, Ga. -

Despite moving the trial of an 18-year-old accused of killing a toddler from Brunswick to the Atlanta suburb of Marietta to find an untainted jury, the majority of the 48 prospective jurors interviewed Monday morning said they had seen news coverage about the case.

De'Marquise Elkins is charged with murder, aggravated assault and armed robbery in the March 21 shooting death of 13-month-old Antonio Santiago. The toddler was strapped in his stroller, out for a walk with his mother a few blocks from their apartment, when someone shot the boy between the eyes with a .22-caliber bullet.

Santiago's mother, Sherry West, was also shot, but recovered.

Elkins’ mother, 36-year-old Karimah Aisha Elkins, will be tried in Cobb County as well. She is charged with tampering with evidence, possession of a weapon by a felon and a probation violation.

Jury selection began at 8:30 a.m. Monday at the Cobb County courthouse in Marietta and they expected the process to take the rest of the day, and possibly extend into Tuesday.

The majority of potential jurors said they had heard about the case at least once on the news -- some for the first time Sunday night on Atlanta television stations.

Superior Court Judge Stephen Kelley had set aside two weeks for the trial.

Elkins faces life in prison if convicted of murder. His youth spared him a possible death sentence. At the time of the shooting he was 17, too young to face capital charges in Georgia.

Police say the motive was as banal as the slaying of a toddler was shocking. Investigators concluded that Antonio was killed during an attempted street robbery of his mother as she was strolling home with the child from the post office. West said a gunman demanding cash shot her baby in the face after she told him she had no money.

Tim Pulliam Tweets From Courtroom

"He kept asking, and I just said `I don't have it,'" West told The Associated Press the day after the slaying. "And he said, `Do you want me to kill your baby?' And I said, `No, don't kill my baby!'"

West was shot in the leg, and another bullet grazed her ear. Witnesses called 911 and rushed to her aid. None saw the shooting, but they watched as West tried to revive her son using CPR. "No, the baby's not breathing," one caller told a 911 operator.

Dominique Lang Police say Elkins had an accomplice, 15-year-old Dominique Lang (pictured, right), who has told investigators Elkins fired the gun.

Lang also is charged with murder but will be tried later. He's expected to be a key witness against Elkins, which prompted a question from District Attorney Jacky Johnson to each of the prospective jurors.

"Could you keep an open mind if the co-defendant were to testify." Johnson asked.

Every single jury candidate said they could.

A question by defense attorney Jonathan Lockwood was a harder for some of the citizens of Cobb County to answer.

"Could you be impartial during the trial since a child was murdered?" he asked.

Six potential jurors -- a father and several mothers and grandmothers -- said they could guarantee they could be fair.

Kevin Gough, a public defender who is Elkins' lead attorney, has strongly suggested in pretrial motions that the real killers are the child's own parents.

"Other evidence of record suggests Sherry West is mentally unstable, gave several inconsistent accounts of how the crime transpired, and had a financial interest in the death of her son in the form of an insurance policy," Gough said in a court motion filed Aug. 5.