Sen worked in the East Village for 16 years at NY Copy & Printing, 204 E. 11th Street, as EVG reader Tad pointed out in an email.
"People have been coming to remember him with us," said Bidyut Sarker, Sen's boss. "He was brilliant. He was kind. We all miss him."
Sen had recently opened his own copy shop on the Upper West Side. His funeral was Monday.
Police have arrested Erika Menendez, who was being held without bail on a murder charge. She reportedly told police she pushed Sen because she thought he was Muslim.
Updated Jan. 4
The Villager has a feature on Sen here.