The tight-knit community of Wilmington, Delaware, and the Saint Mark’s High School family has been left reeling from the sudden and tragic loss of one of its most beloved members, Brian “Rat” Ratasiewicz. Known for his unwavering dedication as a coach, teacher, and mentor, Ratasiewicz’s passing has left an indelible void that will be felt by students, athletes, and colleagues for years to come. His unexpected death on Monday, October 7, 2024, from a massive heart attack, has plunged the community into grief, as they mourn the loss of a man whose impact went far beyond the playing field.
Affectionately known as “Rat” by his peers and students, Ratasiewicz was a towering figure in the halls of Saint Mark’s High School, where he spent years shaping the lives of young athletes and students. More than just a coach, Rat was a mentor, a friend, and a source of unwavering support and encouragement for countless individuals. His infectious smile, booming voice, and passion for sports made him a beloved figure at Saint Mark’s, and his sudden passing has left those who knew him grappling with the painful reality that a cherished pillar of their community is no longer with them.
Born and raised in Wilmington, Delaware, Brian Ratasiewicz was deeply rooted in his community. He graduated from Delcastle Technical High School, where he first developed his love for sports, particularly football and baseball. After high school, his passion for athletics only grew, and it became clear to those who knew him that he was destined to make an impact on the lives of others through coaching. His journey eventually led him to Saint Mark’s High School, where he would leave a lasting legacy.
For years, Ratasiewicz was a cornerstone of the Saint Mark’s athletic program, most notably as a football coach. But his influence didn’t stop there. He was also a key part of the baseball coaching staff, and his voice could be heard as the announcer at many of the school’s sporting events. His booming voice, laced with enthusiasm and love for the game, became synonymous with the school’s sporting culture. Students, parents, and faculty alike recall the excitement and energy he brought to every game, his voice motivating athletes to push beyond their limits, win or lose.
Beyond the athletic field, Ratasiewicz recently joined Saint Mark’s Student Services team, a role he called his “dream job.” He was often found patrolling the school’s hallways, chatting with students, offering advice, and ensuring that everyone felt seen and supported. His new role allowed him to connect with even more students, and he relished every moment of it. Whether he was overseeing study halls, helping out in the cafeteria, or just lending an ear to a student who needed to talk, Rat was always there, a reliable presence and a constant source of positivity.
The news of his passing was announced by Saint Mark’s High School in a heartfelt statement sent to parents and the school community on Monday evening. The statement encapsulated the profound sense of loss felt by all who knew him: “It is with heavy hearts that we share the passing of Brian ‘Rat’ Ratasiewicz. Rat spent his last day helping at Open House and later enjoying a Phillies game with his Saint Mark’s family. He was the voice of Saint Mark’s, announcing at most athletic events and serving as part of the baseball coaching staff. Recently, he joined our Student Services team, declaring it his dream job and saying he was now truly ‘home.’ Whether in the parking lot, the cafeteria, or study halls, Rat was always there with a smile.”
The announcement also expressed the school’s commitment to supporting its students and staff in the wake of this tragedy. “Counselors from Saint Mark’s and Sean’s House will be available to assist students throughout the week. Details on funeral arrangements will be shared as they become available.”
The response to Ratasiewicz’s death has been overwhelming, with an outpouring of tributes flooding social media from students, athletes, parents, and colleagues. Many shared personal stories of how Rat had touched their lives, recounting moments of encouragement, mentorship, and kindness. One former student wrote, “It is with the heaviest heart to say that this amazing man is no longer with us. Brian Ratasiewicz was a mentor, coach, family man, and dear friend to countless. My words do no justice to the impact he had on kids, particularly my boys. Heaven gained an angel who is putting together the best baseball team imaginable. Coach Rat, you will be missed more than you will ever know! RIP my friend.”
For many in the Saint Mark’s community, Rat was more than just a coach. He was a father figure, a mentor, and someone who always went the extra mile to ensure that his students and athletes knew they were valued. Whether he was offering a word of advice, cheering from the sidelines, or simply making students laugh with his trademark humor, Rat’s presence was always a source of comfort and strength. His sudden passing has left a void that will be difficult to fill, but his legacy will continue to live on through the countless lives he touched.
The timing of his death has added to the heartbreak. Rat spent his final day doing what he loved—helping at Saint Mark’s Open House and later enjoying a Phillies game with his fellow staff members and friends. It was a day filled with joy and camaraderie, a reflection of the life he led and the values he held dear. His sudden passing after such a joyful day has left many grappling with the profound shock and sadness of his absence.
In addition to his work at Saint Mark’s, Rat was deeply committed to his family. He was a devoted father, brother, uncle, and partner, always putting the needs of his loved ones above his own. His family was his world, and he took immense pride in being there for them, whether it was cheering on his children at their sporting events or simply spending quality time with them. His loss is a devastating blow to his family, who will remember him not only as a great coach but as a loving and devoted man.
As the community mourns, plans for Ratasiewicz’s funeral are being made, and details will be shared with the public when they become available. In the meantime, Saint Mark’s High School is offering support to students, staff, and families as they navigate this difficult time. Counselors from Sean’s House, a local organization dedicated to mental health and crisis support, have joined the school’s own counseling team in providing assistance to those affected by the tragedy.
The loss of Brian “Rat” Ratasiewicz is a reminder of the fragility of life and the profound impact that one person can have on an entire community. His legacy as a coach, mentor, and friend will continue to inspire and uplift those who knew him, and his memory will live on in the hearts of his students, colleagues, and loved ones.
As one parent wrote in a touching tribute, “May the angels lead you into paradise, Rat. Thank you for your service, love, and laughter. Rest in peace, good and faithful servant.”
In the coming days, the Saint Mark’s community will gather to honor and remember the man who dedicated his life to the school, its students, and the game of football. But beyond the grief and the sadness, there is a sense of gratitude for the time they had with him—a man who made every day brighter, who left an indelible mark on the hearts of those around him, and whose legacy will live on in the halls of Saint Mark’s High School for years to come.
