Casey Anthony Trial Update: No DNA on defendant's clothes or in her car, say defense witnesses

(CBS/WKMG/AP) ORLANDO, Fla. - The defense began presenting its case Thursday in the murder trial of Casey Anthony, who is accused of killing her 2-year-old daughter, Caylee, in 2008.

Pictures: Casey and Caylee Anthony, Personal Photos

Bloise presented photos of Anthony's bedroom and closet, which he examined, using an alternative light source to identify stains. He said he checked the pair of pants he was told Anthony was wearing on June 16, the day the defense says Caylee died, and found no stain on the pants, reports the station.

The defendant's mother, Cindy Anthony, previously testified that she had washed the pants.

Bloise earlier testified, as a prosecution witness, about processing Anthony's white Pontiac Sunfire, which several witnesses said smelled like human decomposition. Bloise was responsible for collecting and drying garbage found in the trunk of Anthony's car.

After Bloise, the defense Thursday called FBI DNA examiner Heather Seubert, an expert in serology, which is the study of blood and other bodily fluids, to the stand.

Seubert said she found no blood or DNA in the trunk of Anthony's car. She also said she found no blood on any of Anthony's clothes she was given to examine.

Seubert testified that she was given a shovel Anthony borrowed from the neighbor to examine it for DNA as well, but the results were not conclusive enough to determine the sexual identity of that DNA.

Anthony, 25, is charged with first-degree murder in the death Caylee and has pleaded not guilty.

The state says Caylee was suffocated by her mother with duct tape. The defense contends Caylee drowned in her grandparents' swimming pool. Caylee's skeletal remains were found in December 2008.

Anthony could face the death penalty if convicted.

The Casey Anthony case was recently reported on by "48 Hours Mystery."

Complete coverage of Casey Anthony on Crimesider