G.V. Loganathan

(CBS/AP)  G.V. Loganathan, 51, was born in the southern Indian city of Chennai and had been a civil and environmental engineering professor at Virginia Tech since 1982.

He won several awards for excellence in teaching, had served on the faculty senate and was an adviser to about 75 undergraduate students.

"We all feel like we have had an electric shock. We do not know what to do," his brother G.V. Palanivel told the NDTV news channel from the southern Indian state of Tamil Nadu. "He has been a driving force for all of us, the guiding force."

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