Sandy Hook, MD — Cian Cassidy, 21, and Summer Giffin, 20, were tragically killed on the evening of May 6, 2025, after being struck by a MARC Train in Sandy Hook, Maryland. The fatal incident occurred around 6:15 p.m., along the Brunswick Line, which connects Washington, D.C. to Martinsburg, West Virginia.

According to the Maryland Transit Administration (MTA), the two victims were walking near or on the railroad tracks when they were struck by MARC Train 875, which was carrying around 100 passengers at the time. The collision resulted in the immediate death of both individuals, sending shockwaves throughout the local community, particularly among their families and friends.

While the train’s passengers were unharmed, they were later transferred to another train to continue their journey. Despite the tragic loss, no injuries were reported among the passengers, who were able to resume their travels later that evening.

The MTA has not yet released further details about the cause of the accident, including the train’s speed at the time of the collision. Authorities continue to investigate the circumstances of the incident. In the meantime, the MTA has reminded the public of the importance of railroad safety and the dangers of walking near or on railroad tracks.

Remembering Cian Cassidy: A Young Man Full of Promise

Cian Cassidy, a 21-year-old from Frederick, Maryland, was remembered by family and friends as a kind, loving, and spirited young man. Described as having a bright smile and a zest for life, Cian’s sudden death has left his family devastated.

His mother, father, and siblings are grappling with the loss of someone who had so much life ahead of him. A family member expressed their grief, saying, “Cian was tragically taken from us far too soon. He had his whole life ahead of him and was deeply loved by everyone who knew him.”

Cian’s loss extends beyond his immediate family. He is survived by his stepfather, grandparents, aunts, uncles, and cousins, all of whom have been left heartbroken by his untimely death.

As the family processes this immense grief, a fundraiser has been launched to help cover memorial expenses. The community’s support is evident as donations pour in to assist the family during this difficult time.

Summer Giffin: A Beloved and Compassionate Soul

Summer Giffin, a 20-year-old resident of Knoxville, Maryland, was also mourned by family and friends. Described as a compassionate and joyful person, Summer had a natural ability to bring happiness to those around her. Her friends have shared memories of her kindness and her ability to light up any room with her positive energy. Summer was a beloved member of her community, and her tragic death has left a deep void.

Much like Cian, Summer was full of promise, and her untimely passing has shaken everyone who knew her. In the aftermath, GoFundMe campaigns have been created to assist with her funeral arrangements and provide support to her grieving family. Her loved ones are asking for space to grieve but are appreciative of the outpouring of love from the community during this incredibly difficult time.

The Incident: A Fatal Collision and the Community’s Response

The events of May 6, 2025, were a stark reminder of the dangers surrounding railroads and the importance of adhering to railroad safety protocols. According to reports, Summer Giffin and Cian Cassidy were walking along the tracks near Sandy Hook when the tragic incident occurred. While the precise details surrounding their actions remain unclear, it is believed that they were walking in the vicinity of the train tracks when the fatal collision took place.

The MARC Train, which was traveling along the Brunswick Line, hit the two individuals, causing a devastating T-bone collision. Law enforcement and emergency responders arrived at the scene soon after the crash, but unfortunately, both individuals were declared dead on arrival.

Following the incident, MTA officials released a statement expressing their deep sorrow for the families of the victims. “We are saddened by this tragic incident and remind the public that it is never safe to walk on or alongside railroad tracks,” the statement read. Authorities emphasized the importance of staying safe and adhering to railroad safety guidelines to prevent similar accidents from happening in the future.

A Long History of Railroad Trespassing in Washington County

The incident in Sandy Hook is not the first time railroad trespassing has resulted in a tragic outcome in the region. In 1999, two men were killed in nearly the same location by a MARC Train, after reportedly going inner tubing on the nearby river. This adds a painful layer to the ongoing conversation about railroad safety and the increasing number of railroad trespassing fatalities in Washington County.

Federal Railroad Administration data indicates that in 2023, there were two railroad trespasser fatalities in Washington County, and the tragic death of Summer Giffin and Cian Cassidy on May 6, 2025, marks the third such fatality in recent years. Despite ongoing safety efforts, these fatalities underscore the growing issue of trespassing and reckless behavior around railroad tracks.

The MTA and other safety advocates are calling for increased awareness of the dangers of being near or on railroad tracks, and the importance of staying away from tracks in any area where trains are present. Local lawmakers and safety officials are now urging the public to pay attention to safety warnings and signage around railroad crossings and tracks.

The Broader Issue: Addressing Railroad Safety in the Region

While the MARC Train incident in Sandy Hook is tragic, it also highlights broader concerns related to railroad safety in the area. In recent years, train accidents have become a growing concern, especially in areas where the rail lines run through residential neighborhoods. Washington County, and other parts of Maryland, have seen an increase in train-related incidents, prompting calls from officials and advocacy groups for more comprehensive safety measures.

There is an increasing need for better safety education to raise awareness about the risks of trespassing on train tracks and the importance of obeying traffic signals at crossings. Additionally, train companies have been urged to improve warning systems and to consider more barriers to prevent people from getting too close to the tracks.

For railroad operators like MTA, ensuring that trains are equipped with proper safety features and that emergency response plans are in place is critical to minimizing future fatalities. Many officials believe that these proactive measures could help prevent similar tragedies from occurring in the future.

The Emotional Toll: A Community in Mourning

The sudden and tragic loss of Summer Giffin and Cian Cassidy has sent waves of sorrow through their families, friends, and the community of Knoxville, Maryland, and Sandy Hook. While the investigation continues, the emotional toll on those closest to them cannot be overstated. GoFundMe

As loved ones prepare for the funeral services and memorials, the community has rallied around them with fundraisers, messages of support, and condolences. The generosity and care shown by the community serve as a reminder that, even in times of unimaginable pain, people can come together to honor the memories of those they’ve lost. GoFundMe

The families of Summer Giffin and Cian Cassidy continue to mourn the tragic loss of their loved ones, and this case serves as a reminder to us all to cherish every moment and to prioritize safety—whether it’s near railroad tracks, on the roads, or in any other potentially dangerous situation.

Conclusion: The Ripple Effect of Tragic Loss

The deaths of Summer Giffin and Cian Cassidy have left a profound impact on their families, friends, and the broader Sandy Hook and Knoxville communities. As investigators continue to gather information and piece together the events of that fateful day, the legacy of Summer and Cian will be carried forward by the love, laughter, and memories they left behind. In their honor, we hope this tragedy leads to increased awareness of railroad safety and the measures needed to prevent future losses. GoFundMe

For now, Summer Giffin and Cian Cassidy will be remembered as bright young souls whose lives were cut short far too soon. Their memory will live on, and their story will continue to inspire conversations about the importance of safety, community, and love. GoFundMe