Ana Marquez-Greene, who died in Friday's shooting, sings "Come Thou Almighty King" with her brother, Isaiah, last summer. "Ana Grace was a child devoted to Christ," her family says.

On Oct. 17, she posted a tweet that read: "Safety first at Sandy Hook... it's a beautiful day for our first evacuation drill!"

Her tweets were often exuberant and frequently included photographs. "Sandy Hook gardeners celebrate their learning after the fall harvest!" "Vote today... and talk to your kids about it!!" "In a fourth grade classroom right now... Completely blown away by the caliber of instruction and by students' deep thinking!" "Chicken dancing at Sandy Hook with the Carnivale Trio!" "Busy afternoon at the Sandy Hook Book Fair... Great time to support your school & stock up for winter reading!"

Her last tweet, written Thursday, read: "Setting up for the Sandy Hook nonfiction book preview for staff... Common Core, here we come!" The tweet included her photograph of a display of books, among them "Alligator or Crocodile: How Do You Know?" and "Insect or Spider: How Do You Know?"

Hochsprung, who was married and raising two daughters and three stepdaughters, received her bachelor's degree in special education from Central Connecticut State University in 1993, a master's in special education from Southern Connecticut State University in 1997 and a sixth-year degree in educational leadership from Southern.

Sherlach, according to numerous news outlets and CNN, also died in the shooting and had worked at Sandy Hook Elementary since 1994 and had served on numerous districtwide committees, including the conflict resolution committee, according to a biography on the Newtown Public Schools website.

Sherlach lived in Trumbull and was married with two adult daughters — one a high school chorus teacher in New Jersey and the other a graduate student at Georgetown University. Sherlach wrote in the biography that she and her husband, Bill, enjoyed traveling and spending time at their lake house in the Finger Lakes in upstate New York. Her hobbies were gardening, reading and the theater.

"I truly enjoy working with the SHS staff, parents and children and am always ready to assist in problem solving, intervention and prevention," she wrote.

The gunman's mother, Nancy Lanza, who some said worked, or volunteered, at the Sandy Hook School, was found dead in her Newtown home, according to many reports.

According to friends and neighbors, Lanza was a kind woman with a sense of humor. Slender, with short hair, Lanza was a fixture at neighborhood events such as the Labor Day parade, and had a special interest in Christmas lights.

Lanza lived on Yogananda Street, in a hilly, affluent neighborhood in the east end of town. Neighbors call it a children- and family-friendly place, a description backed up by the kids riding their bikes and the folks walking their dogs despite the crush of television trucks and reporters waiting near the Lanza home.

Although many interviewed in the neighborhood said they didn't know Nancy Lanza, or merely knew that a family by that name lived nearby, those that did know her said the day's events were too much.

Lanza's friend and neighbor Rhonda Cullens fought back tears Friday afternoon in the doorway of her home on Founders Lane, just around the corner from the Lanza residence.

She said she met Nancy Lanza playing bunco, a popular dice game, with a group of women in the neighborhood, but she hadn't seen her for years since she stopped playing with the group. "She was just a sweet, caring person."

Marsha Moskowitz, 56, who lives near the Lanzas, used to drive a school bus for the school district and would pick up both Adam, 20, and Ryan Lanza, 24. They were "very quiet, shy," she said, "You know the trouble kids, and you figure, 'Pff, that one's going to be trouble.' But I never would have thought that about them."

In dropping off and picking up the boys each day for years, she would often run into Nancy Lanza, she said.

"We would chit-chat," Moskowitz said, who remembered Lanza as "a very kind woman."

Courant staff writers Dave Altimari, Brian Dowling, Jenny Wilson, Naedine Hazell and Nancy Schoeffler contributed to this story. An Associated Press report also is included.