Wayne LaPierre, CEO of the nation’s largest gun-rights lobbing group, said at a Washington news conference that ‘‘the only thing that stops a bad guy with a gun is a good guy with a gun.’’

LaPierre blamed video games, music and videos for exposing children to violence.

The founder of a video game website said he expects tens of thousands of players of online shooter games to participate in a 24-hour cease-fire that started at noon Friday. Antwand Pearman, founder of GamerFitNation, said the cease-fire is meant to show respect for those killed in the Newtown shooting. He said, however, that video games don’t cause violence.

At the memorial services, a school psychologist who rushed toward the gunman was remembered as a caring professional, a passionate fan of the Miami Dolphins and a woman who ultimately put the lives of others ahead of her own.

One of Mary Sherlach’s friends donned a Dan Marino jersey for his eulogy at her funeral, which drew a standing-room-only crowd to St. Stephen Roman Catholic Church in Trumbull.

The church was adorned with a Christmas tree and several wreaths and bouquets, including one with the teal, white and orange colors of the Dolphins.

Rev. Stephen Gleason said Sherlach’s love was Christ-like.

‘‘No one has greater love than to give one’s life for his friends,’’ he said. ‘‘And she did so in an attempt to save others.’’

Five other victims from Sandy Hook had services or calling hours scheduled on Friday.

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