A COVID-19 vaccine.
Gavin, who turned 12 on Sunday, lost his dad -- Glen Ridge Police Officer Charges "Rob" Roberts -- in May 2020 to the virus.
The boy's mom and the officer's widow, Alice Roberts, penned an op-ed in NJ Advance Media explaining COVID-19 has "ruled" their life ever since.
"By sharing my family’s experience, I hope my husband’s death and our story can help persuade others to do the most patriotic and selfless thing I can think of doing," Roberts writes. "Get a COVID-19 vaccine!
"That’s what my son will be doing this Sunday to celebrate his 12th birthday. It will be one he won’t forget."
More than $265,000 had been raised on a GoFundMe for the family as of Sept. 20.
Click here for Roberts' full column in NJ Advance Media.
Click here to follow Daily Voice North Hunterdon and receive free news updates.