FAR ROCKAWAY — A few weeks ago Sharon Plummer posted an Instagram photo of her 16-year-old son, Neshawn Plummer, with his arm wrapped around her shoulders.
"I pray every single second of the day that he make it [to] see 18," she wrote in the caption.
Three years earlier, her older son, Shawn, was shot and killed while riding his bike on Seagirt Boulevard near Beach 29th Street in the middle of the day. The shooting remains unsolved, police said.
Plummer, who ran a relief center in an empty lot near the site of her son's death after Hurricane Sandy, also became involved in anti-gun violence groups and often spoke on social media about the senseless killings in her neighborhood and beyond.
Neshawn and his mother, Sharon, in a photo she posted on Instagram. (Instagram.)
She also wrote a lot about Neshawn, for whom she vowed to make things better.
On Aug. 30, Neshawn was shot in the head on the corner of Beach 26th Street and Seagirt Avenue — just a few blocks from where his older brother was killed, according to the NYPD.
He was taken off life support Tuesday afternoon, according to the NYPD and Plummer, who posted the same photo from weeks before, with the time of Neshawn's death.
"Rip to my darling son Neshawn Plummer 10/13/98-09/01/2015... have to stay good to my baby boy," she wrote.
Earlier that morning, police released surveillance video of two male suspects running through a parking lot after the shooting.
They have no further information about the shooting, police said.
After Hurricane Sandy, Plummer was a positive force for her neighbors, distributing donations, food and other supplies.
At the time, the pain from Shawn's death was still fresh.
"It's not the same, it's not the same," she told the filmmakers in a video taken by Occupy Sandy about her relief site five months after Shawn was killed. "One minute I'm up, one minute I'm down...I don't mean to cry, but I can't help it today."
Neshawn and his mother after releasing balloons to honor his older brother's memory. (Youtube)
As she continued to seek justice for Shawn, she prayed and looked after Neshawn, who was in high school.
After he graduated from middle school in 2014, she posted a photo of him holding a diploma and wearing his gown.
"Thank u lord he made it through all the pain & heartache he had to go through.," she wrote. "God is good all the time."