A Texas district judge remains hospitalized with non-life threatening injuries after she was ambushed outside her home in West Austin Friday.
Investigators are now trying to single out a suspect, reports CBS News correspondent Omar Villafranca.
Travis County Court staffers are reviewing hundreds of felony cases in an effort to determine who would want to harm state District Judge Julie Kocurek.
"We don't have a lot of information about the suspect," said Mark Spangler of the Austin Police Department. "The truth is at this point we don't have somebody in custody."
According to the Austin American-statesman, "Kocurek had attended a football game... When she returned home, a bag of trash or a garbage had been placed in front of the security into her driveway."
When she got out to move it she was "seriously injured by shrapnel and broken glass - rather than a direct hit from a bullet."
Kocurek was named Travis County's first female district judge. A former prosecutor, she was appointed by then-governor George W. Bush in 1999. In 2006, she switched political parties and became a Democrat.
Kocurek presided over high-profile political cases involving former U.S. House Majority Leader Tom DeLay and former Texas Gov. Rick Perry.
"I am confident that we will ultimately prevail - that this farce of a prosecution will be revealed for what it is and those responsible will be held accountable," Perry said.
She made headlines last year by suggesting Perry's comments could be considered a threat. Before recusing herself from the case, Kocurek defended the grand jury by saying about Perry that "no one is above the law."
Austin police investigators are looking into past threats made against her.
"We do have witnesses that are helping us to fill in some of the details that we need," Spangler said.