The subject line on the email my old friend Bill sent me two days before Christmas said, simply: "here is a poem emily wrote for her murdered sister lauren."

Emily is Bill's daughter. Lauren, his stepdaughter, is one of the teachers gunned down during the Dec. 14 massacre at Sandy Hook Elementary School in Newtown, Conn.

The desperate, unbelieving howl Bill shared from Emily, two decades a sister to Lauren Rousseau, was a stark reminder that as the greater world anticipates a new year and the time-worn debates about the arming of America continue, no page has or will be turned for the families.

You can let go of me nowI say to the force that has taken My heartAnd smashed it under its heelYou can let go of me now!I yell at this forceThis grief That grips my shouldersAnd shakes meShakes meTakes the wind From my bodyDrops meTo my kneesLeaves meA trembling ballOf tears snot wails

I met Emily when she was a little kid, the middle child of my Connecticut newspaper colleague Bill Leukhardt, sandwiched between brothers Nate and Andy. She'd fought off cancer as a 3-year-old and had that wiser-than-her-years look in her eyes that children who've battled disease or endured hardship often carry.

Emily, now 30, told me that she began writing her poem on her iPhone during a sleepless night the Tuesday after the Friday massacre.

A private meeting that she and the rest of the family, including her dad and stepmom Terri Rousseau, Lauren's mother, had with President Obama the Sunday after the murders was "pretty overwhelming," she said. "He looked like he'd been crying. He gave me a hug as he said, 'We'll get through this.' "

By Monday Emily described her own state as comatose, interrupted by sobbing. Tuesday she'd tried to do some Christmas shopping, and then collapsed in her hallway in tears and wails.

You can let go of me nowAnd give me back my sisterTwenty years my sisterTwenty years ago I was writing to herFinding out which American Girl dolls we both hadWhat our favorite colors wereAnd how we could be friendsNow that our parents found each other

After Bill and Terri fell in love as divorced friends, they worked to introduce their six children — four boys, and the two girls — to each other through letters they hand-delivered before the face-to-face meeting.

Emily and Lauren were both 10 at the time, and they shared important details about dolls and favorites.

"I was very excited to meet her — we both had the same dolls, we both liked the same things," Emily said.

Like many sisters, they were close as youngsters, more distanced as their interests and personalities diverged as teenagers, and rediscovered each other as young adults.

They shared rides from Bill and Terri, a newspaper copy editor, to classes at the University of Connecticut. And they strengthened their bond two years ago during Bill's epic battle with a brain tumor.

"She was just so good," Emily says of her sister. "Just fundamentally good. Never hurt anybody, or said a bad word about anybody."

Another former Connecticut newspaper colleague, Bob Miller, Bill's close friend, wrote that Lauren was having the best year of her life when she was killed.

That Lauren had realized her teaching dream, and was happily engaged, have provided some solace, Emily says, as has talking about her.

"Terri's mantra has been that memories are for comfort, not for pain," says Emily, who wore one of Lauren's scarves to her funeral and now keeps it tied to her bedroom's doorknob. "So we've been sharing a lot of memories."

Emily, like her sister, works a second job at a Starbucks, and she was worried that after the massacre her customers would want to talk about what happened. Largely, though, she says, they've done the best thing possible given the circumstances: "They're just letting me know that they're there for me."

Twenty years from thenI am writing about herRefusing past tenseRefusing to be the only daughterThe only sisterWe're the moonlight dancingBetween the stars of our brothersAnd light doesn't dieIt only succumbs to darknessFor a finite period of timeThen returnsForcing your eyes to adjustAfter the DarkShining brighter than before-- By Emily LeukhardtCopyright 2016 NPR. To see more, visit http://www.npr.org/.