It is with profound sorrow that we announce the passing of Sgt. First Class Sean Acker, a dedicated veteran trooper with the New Jersey State Police. Sean passed away on February 4, 2026, following a medical condition connected to a work‑related injury.
His loss has deeply shaken his family, colleagues, and the broader law enforcement community, who remember him as a steadfast professional and a compassionate leader.
Acker served the State of New Jersey with honor for more than 19 years. A proud member of the 145th State Police Class, he built a distinguished career marked by integrity, commitment, and a genuine desire to help others.
His work within the Division Staff Section reflected his strong leadership and his ability to guide and support those around him. Before joining the State Police in 2006, Sean served in the United States Air Force, continuing a lifelong dedication to public service.
Born in Abington, Pennsylvania, and raised in Howell Township, New Jersey, Sean carried with him the values of hard work, loyalty, and compassion. Colleagues describe him as a mentor who led by example—steady, thoughtful, and always willing to lend a hand.
His generosity and caring nature touched countless lives, leaving a lasting impact on those fortunate enough to work alongside him.
The New Jersey State Police are mourning the loss of one of their own. Lt. Col. David Sierotowicz, Acting Superintendent, expressed heartfelt condolences on behalf of the entire agency, calling Sean’s passing an “untimely loss” and reaffirming their commitment to supporting his family.
Tributes from fellow troopers continue to pour in, each reflecting the deep respect and admiration Sean earned throughout his career.
Sean is survived by his wife, Retired Captain Lisa Acker, and their two children, who share in his legacy of service and strength. As the State Police community and loved ones grieve, they remain united in honoring his memory and the extraordinary life he lived.
Details regarding memorial services will be shared in the coming days as family, friends, and colleagues prepare to pay tribute to a man who served with honor and heart.