Sandy Hook Elementary School Shootings
The group — dubbed Team 26 — said the trip is to honor the victims and promote legislation aimed at curbing gun violence.
Some of the recommendations, especially those focusing on gun control, were included in an interim report in 2013 that called for ensuring classroom doors can be locked from the inside and limits on ammunition purchases.
The wrongful death lawsuit served on the town Friday is being filed by the parents of Jesse Lewis and Noah Pozner, who were among the children fatally shot Dec. 14, 2012.
That playground was dedicated Sunday to honor Maddie, one of 26 people gunned down at Sandy Hook Elementary School in Newtown, Connecticut, in December 2012.