An Indian-born man was among those killed in the shooting at a US university which left 33 people dead, his family and colleagues say.
Prof Loganathan - 'a bright boy since birth'
Professor GV Loganathan was teaching at Virginia Tech when a gunman went on the rampage on Monday.
His brother said he heard of the death from the professor's wife, who had identified the body.
Names of the dead have yet to be released. Fears are growing for a second Indian who is missing.
The authorities have yet to identify the gunman, who they say was a resident Asian student at the university.
Prof Loganathan, who was in his early 50s, came from the southern Indian state of Tamil Nadu.
He joined Virginia Tech in the late 1970s and had remained there ever since, working in the department of civil and environmental engineering.
He is survived by his wife, Usha, and two daughters.
His brother, Palanivelu, said his elder sibling had been "a bright boy since birth".
"It is a terrific shock, an absolute electric shock. He went with very high dreams and actually he enjoyed... he cherished all those memories," he told the BBC.
"He was very passionate about his teaching. He always relished those memories and he lived for the student community.
"He had a successful career, but that it has to be cut off at this stage is a very sad blow."
Prof Loganathan was in the top five in his year when he obtained his masters degree from the prestigious Indian Institute of Technology, Kanpur, in northern India.
Family members recall with pride the award he won for excellence in teaching.
The BBC's TN Gopalan in Madras (Chennai) says the professor's parents, who are both in their 70s, last saw him when he visited India in October 2004.
Colleagues of Prof Loganathan's also spoke of his death.
One, Prof Mallikarjun Kumar, told India's CNN-IBN channel his wife had called up trying to get word of her husband.
"So we tried the local hospitals and tried to locate whether he is there or not. We could not find him and after that... news broke out that he is among the victims."
Indian consular officials were being sent to the university on Tuesday morning to liaise with Indian students there following the tragedy.
VIRGINIA TECH UNIVERSITY
Founded in 1872
26,000+ students and 10,000 staff
2,600-acre (1,040-hectare) campus
The university's Indian Students Association says it has about 700 members, making it the largest foreign body on campus.
Association president Ajit Pal Singh Raina told the Press Trust of India they had contacted most of the Indian student community.
"Right now we don't know of any Indian students being involved," he said.
But press reports quote friends of Minal Panchal, a student from Mumbai, saying she was in the building at the time of the shooting and they have been unable to contact her.
Virginia Tech remains closed while officials identify victims and notify next-of-kin. The university says it will not release names of those killed until that process is complete.
LOCATIONS OF VIRGINIA TECH CAMPUS SHOOTINGS
1) 0715: Two killed at West Ambler Johnston Hall, a dormitory building. Police believe incident isolated and "domestic" in nature
2) 0945 (approx): 30 killed in shooting at engineering building, Norris Hall. Gunman kills himself