Lanza's reply, according to Wilshe, was something like: "It was my brother. I think my mother is dead. Oh my God."
Wilshe said he met Ryan Lanza through mutual friends and hung out with him about once a month.
"I really enjoy his company because he's a great guy," Wilshe said. He said Lanza never mentioned his brother, though "I didn't know him well enough to have gotten to know his family."
Katie Colaneri, 24, a radio reporter from Hoboken, said she met Ryan Lanza about a year and a half ago through mutual friends, and described him as "the nicest guy." She last saw him at a community meeting after Superstorm Sandy, and they spoke of how he had been without power for several days.
When she heard his name, she said, it left her in "absolute shock, and I could not fathom what I was hearing."
Associated Press writer Mark Scolforo in Harrisburg, Pa., contributed to this report.