Lab tech charged with Yale grad student's murder

New Haven, Conn. - Raymond Clark III appeared in court and was charged with murder Thursday hours after his arrest in the killing of a graduate student whose body was found stuffed in the wall of the research building where they both worked. "It is important to note that this is not about urban crime, university crime, domestic crime but an issue of workplace violence, which is becoming a growing concern around the country," Lewis said, adding he wasn't ruling out additional charges.