University of California, Irvine pharmaceutical sciences professor Rainer Reinscheid conducted as many as 60 such Internet searches on his home computer since March, after his teenage son committed suicide, Orange County deputy district attorney Andrew Katz told reporters after a brief hearing in the case.
The searches raised concerns by authorities that Reinscheid might follow through on plans laid out in the emails to attack the high school where his son had been disciplined before his death. Reinscheid wrote that he would shoot at least 200 students and administrators, commit sexual assaults and burn down the school before killing himself, Katz said.
Prosecutors have not charged the 48-year-old professor with making threats contained in the emails because the messages were private communications and were not sent to alleged targets, Katz said. Still, prosecutors have had him held without bail because of the messages.
"The additional searches on the computer ... strengthens the idea that he is following through on the threats that he made in the emails that were previously discovered, and that those threats should be taken seriously," Katz told reporters
An amended complaint filed Wednesday charged Reinscheid with eight counts of arson and one count of attempted arson involving a series of small fires at University High School in Irvine, the park where his 14-year-old son hanged himself, and the home of a school administrator who had disciplined the boy for allegedly stealing from the school store.
Reinscheid—who squinted at the audience Wednesday from inside a courtroom holding cage—is scheduled to be arraigned Aug. 15.
After the hearing, defense attorney Ron Cordova told the Orange County Register that the emails—which were addressed by Reinscheid to himself and his wife in April—were a despondent man's musings about six weeks after his son's body was found.
"I will say this is not Aurora, Colo., this is not Tuscon, Ariz., this is not Oak Creek, Wis., " Cordova told the newspaper. "This was a time of particular anguish and mental suffering for Dr. Reinscheid."
Phone messages left for Cordova by The Associated Press were not immediately returned.
Reinscheid, a German citizen, was arrested at his home in Irvine on July 24. When police searched his home and cell phone, they found the email messages describing a plan to buy a dozen machine guns and attack the school that he blamed for the death of his son, Claas Stubbe.
An email message sent by the AP to Reinscheid's wife Wendy was not immediately returned. She obtained a temporary restraining order against Reinscheid in 2010 after he allegedly pushed her against a wall and grabbed her neck to choke her, family court records show. The order expired when she failed to appear in court.
His previous wife Doerte Stubbe—the mother of Claas—filed papers during divorce proceedings saying she called police after Reinscheid pushed her and put his hand around her neck in 2003. She told police she didn't need their help when they arrived because she was afraid to have him arrested, according to papers filed in Orange County's family court.
Reinscheid has been at UC Irvine for about a dozen years and rode his bike to work every day from his house on campus. His research included studying molecular pharmacology and psychiatric disorders, including studies of schizophrenia, stress, emotional behavior and sleep, according to the school's website.
He had requested a leave of absence from UCI, according to a police report.
Associated Press writer Gillian Flaccus contributed to this report.