Harris County, TX – A devastating hit-and-run incident on Tuesday, July 1, 2025, has left two families shattered and a community in mourning after Daniel Perez and Krystal Calvillo were struck and killed while riding their bicycles in northwest Harris County. Authorities with the Harris County Sheriff’s Office are actively seeking the public’s help in identifying the driver who fled the scene and are urging witnesses to come forward.
The fatal crash occurred around 10:50 p.m. near the intersection of Veterans Memorial Drive and Fallbrook Drive, a heavily traveled area that becomes particularly hazardous after dark. According to the sheriff’s office, Daniel Perez and Krystal Calvillo were biking along the west side of the roadway when tragedy unfolded in two horrifying phases.
Investigators say that Perez was initially struck by a passing vehicle, the driver of which remained at the scene and attempted to help. Calvillo, who was riding nearby, immediately rushed to aid Perez — but in the midst of her courageous act, a second vehicle barreled into both of them and fled, leaving no aid, no information, and no conscience behind.
Both victims, tragically, were pronounced dead at the scene.
Remembering Daniel and Krystal
Daniel Perez, described by loved ones as compassionate and hardworking, was known for his quiet strength and willingness to help anyone in need. Whether volunteering at local events or biking to stay active, Daniel was admired for his integrity and humility. Friends say he found joy in the simple things — spending time outdoors, fixing up his bike, and enjoying long rides through the neighborhoods of northwest Houston.
Krystal Calvillo, a beloved daughter, sister, and friend, was deeply passionate about community, health, and the environment. An avid cyclist and advocate for sustainable transportation, Krystal was known for her fierce love for those around her. She had a reputation for jumping in to help — and that instinct, to run toward someone in need, ultimately cost her life.
“She was doing what she always did — helping,” said a family friend. “That was Krystal. She saw someone she cared about hurting, and she didn’t hesitate.”
The Search for Justice
The Harris County Sheriff’s Office Vehicular Crimes Division is continuing its investigation and has issued a public plea for any leads that could help identify the driver responsible for the fatal hit-and-run. Surveillance footage from nearby businesses is being reviewed, and detectives are calling on community members who may have been in the area that night to come forward with information.
As of now, Crime Stoppers of Houston is offering a reward of up to $5,000 for information leading to the arrest and charging of the hit-and-run driver. Tipsters may remain anonymous and can submit information in the following ways:
- Call: 713-222-TIPS (8477)
- Mobile App: Crime Stoppers of Houston
Only tips submitted directly to Crime Stoppers are eligible for the cash reward.
Community Mourning and Call for Change
The deaths of Daniel Perez and Krystal Calvillo have reignited calls for improved cyclist safety in Harris County. Advocates are demanding increased lighting, better protected bike lanes, and stricter enforcement against reckless driving. Several local cycling groups have announced plans to organize a memorial ride in honor of the victims, aiming to raise awareness and demand action from city and county officials.
A growing roadside memorial now marks the spot where the tragedy took place — adorned with flowers, candles, handwritten messages, and bicycle parts arranged in remembrance. The words “Justice for Daniel & Krystal” are scrawled across signs placed near the curb.
Family members, overwhelmed by grief, are now left searching for answers while preparing for the final goodbyes. A joint memorial service is reportedly being planned, with more details to be announced in the coming days.
A Painful Reminder
The senseless loss of Daniel Perez and Krystal Calvillo is not only a personal tragedy but a reflection of a broader issue affecting road safety across Texas. Their story serves as a painful reminder of how quickly life can be taken — and how vital it is for drivers to remain vigilant, sober, and accountable, especially in shared spaces with vulnerable road users like cyclists and pedestrians.
As Harris County mourns, one hope remains: that justice will prevail, and that no other family will have to endure such unimaginable loss.
Rest in peace, Daniel Perez and Krystal Calvillo. You are deeply missed and forever remembered.
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