ORLANDO, Fla. -- The mother of a Florida woman accused of killing her 2-year-old daughter became emotional while testifying during her daughter's trial Saturday, wiping away tears as she described a playhouse built for the toddler.

Cindy Anthony described the layout of her home and also wiped away tears when prosecutors showed a picture of 2-year-old Caylee's bed.

Casey Anthony, who is charged with first-degree murder in the toddler's summer 2008 death, wiped away tears with a napkin during her mother's testimony.

Prosecutors contend the 25-year-old mother suffocated Caylee with duct tape. Anthony's defense team says the child drowned accidently in a family pool. If convicted, she could be sentenced to death.

The prosecution is looking to refocus its case after experiencing its first setback in the murder trial. State attorneys must decide how to proceed after getting rebuffed late Friday in an attempt to introduce instant messages between Casey Anthony and an ex-boyfriend which they say go to her motive.

With the jury sent out of the room by Judge Belvin Perry, the state argued the messages, which included sexually laced chatter between Anthony and Tony Lazzaro, help establish the motive for killing her 2-year-old daughter. Judge Belvin Perry was shaky on that premise and initially requested extra time to review all of the content.

"What does that tend to prove or disprove?" Perry asked at one point.

But after a recess the prosecution withdrew its motion to introduce the evidence, though it could try to get it admitted later

The prosecution on Friday did present its strongest witness against 25-year-old Casey Anthony, who is charged with first-degree murder in Caylee Anthony's death in the summer of 2008.

The manager of a towing yard where the defendant's car was kept for more than two weeks during that summer testified that he smelled an odor coming from her car consistent with decomposing bodies he'd smelled in the past. The defense argued in its opening statement that the smell was actually from a bag of trash Anthony left in her car.

Birch said he has spent 30 years in the towing business as well as two years in waste management, and had come across deceased bodies at least eight times. He said he first noticed the smell coming from the car on the fourth day her 1998 Pontiac was parked on his yard. The car had been towed after spending four days in an Amscot parking lot. It stayed there from June 30 to July 15, when Anthony's parents retrieved it.

"In my opinion and experience, the smell of decomposition is unique in comparison to rotten food or rotting garbage," Birch said.

His testimony went largely unchallenged by the defense.

The state is portraying Anthony as carefree and cheerful in the weeks after the child was last seen alive in June 2008. The defense has suggested that George Anthony, Casey's father, found Caylee drowned and helped dispose of the body. He testified for the third time in four days Friday.