Casey Anthony Trial Update: "Body farm" doctor testifies
(CBS/WKMG/AP) ORLANDO, Fla. - Casey Anthony's murder trial entered its third week Monday, with prosecutors about midway through their case against the Florida mother accused of killing her 2-year-old daughter Caylee.
Pictures: Casey and Caylee Anthony, Personal Photos
Dr. Arpad Vass, a researcher at the Oak Ridge National Laboratory - often called the "body farm" - was the first witness called Monday. Vass has pioneered a novel technique for detecting human decomposition from air samples, CBS affiliate WKMG reports.
On Saturday, FBI forensic expert Karen Korsberg Lowe testified as an expert that one hair removed from the trunk of Casey Anthony's car is consistent with hair from a dead person and was similar to hair pulled off Caylee Anthony's brush, reports WKMG.
After Lowe, the state called Michael Vincent, a crime scene investigator for the Orange County Sheriff's Office.
Vincent assisted in the processing of Anthony's car in July 2008, collecting stain and air samples from the vehicle, including the trunk.
Vincent said processing Anthony's car was the first time that he had ever collected an air sample.
Prosecutors are trying to prove that Anthony suffocated her daughter, Caylee, with duct tape in the summer of 2008. The defense said the toddler drowned in her grandparents' swimming pool, reports CBS affiliate WKMG.
Anthony has pleaded not guilty. If convicted, the 25-year-old Anthony could be sentenced to death.
The Casey Anthony case was recently reported on by "48 Hours Mystery."