A private equity chief whose powerful businesswoman wife was among four murdered in a New York City mass shooting looked distraught hours after the killings.

Evan LePatner, 44, appeared exhausted and distressed less than a day after his wife Wesley LePatner, 43, was killed at her office in 345 Park Avenue, a skyscraper in Midtown Manhattan.

Wesley was a senior managing director at the prestigious finance giant. She and her husband lived in a $7 million apartment on New York's Upper East Side with their two young children.

The couple met during their first day studying at Yale in 1999.

Daily Mail photographed LePatner as he arrived back at his home Tuesday, but he did not comment about the terrible tragedy that has rocked his family.