Prosecutors, however, said his alibi didn’t hold up. Montgomery County District Attorney Bruce Castor has said the scene
was staged to look like a burglary.
“Dr. Robb lied to the police about an obvious motive for this murder, his knowledge of his wife’s recent plans to divorce him and obtain a significant portion of his wealth,” according to an affidavit by Upper Merion police Detective David Gershanick.
Robb was charged with first- and third-degree murder, possession of an instrument of crime, tampering with evidence and lying to authorities.
His wife, Ellen Robb, 49, had told relatives and others that she had hired a divorce attorney and was expecting $4,000 a month in spousal support, prosecutors said in court papers. The couple have a 12-year-old daughter.
Robb has been at Penn for at least four years, according to a resume posted on his university Web site. Penn officials said earlier that they had arranged for someone else to teach Robb’s graduate seminar in game theory this semester.
ASSOCIATED PRESS: Hit To Death In The Future Head