A tragic day on Illinois’ Fox River has quickly become one of the most shocking criminal investigations in recent memory, and each new court filing appears to paint an even more disturbing picture of what allegedly happened in the moments before disaster struck.

Richard M. Stevenson, 45, president of Stevenson Crane Company in Lisle, Illinois, now faces multiple felony charges after prosecutors accused him of causing a deadly boating collision that claimed the life of a woman on July 25. Authorities allege Stevenson was operating a high-powered pontoon boat while intoxicated when it slammed into another vessel at an extremely high speed, resulting in a catastrophic crash. He has been charged with two counts of aggravated DUI causing death and one count of reckless homicide, although the charges remain allegations and he is presumed innocent unless proven guilty in court.

But what has captured the public’s attention even more than the horrifying collision are the statements reportedly given by people who were riding with Stevenson before everything went wrong.

Those early witness accounts became a central focus during Monday’s emergency detention hearing in McHenry County, where prosecutors argued that Stevenson should remain behind bars while awaiting trial.

The judge agreed.

Calling him a serious danger to the community, Judge Cynthia D. Lamb denied pretrial release after hearing evidence presented by prosecutors regarding both the alleged incident and Stevenson’s past driving history.

According to prosecutors, passengers and other witnesses described a day that was growing increasingly dangerous long before the fatal impact occurred.

Court documents allege that Stevenson had been drinking throughout the day while continuing to operate the 31-foot Southbay pontoon boat on both the Chain O’ Lakes and the Fox River. Witnesses also reportedly described him traveling at extremely high speeds despite crowded summer boating conditions.

Those statements became especially significant because they suggested the fatal collision may not have been an isolated moment of poor judgment.

Instead, prosecutors argued that there had been repeated warning signs throughout the day.

Deputy Chief Brian Miller delivered perhaps the most memorable statement during the hearing.

“This man was a ticking time-bomb,” Miller told the court, before adding that “that bomb went off this past Saturday on the Fox River.”

That powerful phrase has since spread across news reports nationwide, becoming the defining description of the prosecution’s case.

Investigators allege that shortly before 2:30 p.m., Stevenson’s pontoon boat struck the rear of a 20-foot Crownline boat south of the McHenry Dam.

Authorities say the larger vessel was traveling at an extremely high rate of speed before riding over the smaller boat.

The collision resulted in catastrophic injuries to one female passenger, who died at the scene.

According to evidence presented in court, Stevenson was later located near the shoreline after his pontoon boat came to rest on land.

Officials also told the court that two other occupants of the pontoon allegedly left the scene before law enforcement officers arrived, although investigators have not publicly accused those individuals of any criminal wrongdoing.

One of the most damaging pieces of evidence discussed during the hearing involved Stevenson’s alleged blood alcohol concentration.

Prosecutors stated that blood testing performed after the crash indicated a BAC of approximately .200—more than twice Illinois’ legal limit for operating a vehicle.

That allegation, combined with witness testimony describing alcohol consumption throughout the day, became a major factor in the court’s decision to keep Stevenson detained.

However, prosecutors didn’t stop there.

They also introduced Stevenson’s prior driving history in an effort to convince the judge that he posed an ongoing public safety risk.

According to court records presented during the hearing, Stevenson has previously faced three DUI charges, three reckless driving charges, and four misdemeanor speeding offenses over the years. Prosecutors argued that this history demonstrated a pattern rather than an isolated incident.

Defense attorneys have not yet presented their full case, and many of the facts surrounding the collision are expected to be examined in greater detail as legal proceedings continue.

Investigators are also continuing to collect additional evidence.

Illinois Conservation Police have asked members of the public to submit photographs, videos, or eyewitness accounts from anyone who may have been on the Fox River that afternoon. Authorities believe additional recordings could help reconstruct the events leading up to the crash.

Meanwhile, McHenry County State’s Attorney Randi L. Freese issued a statement expressing sympathy for the victim’s family while emphasizing that recreational waterways should remain safe for everyone.

“Our rivers and lakes should be places where families can safely enjoy time together, not places where the reckless and impaired can turn a summer day into a tragedy,” Freese said after the detention hearing.

As the criminal case moves forward, many questions remain unanswered.

Exactly what conversations occurred aboard the pontoon before the collision?

Did passengers attempt to stop the alleged reckless behavior?

Were there additional warning signs that others observed before the crash?

Those questions may eventually be addressed as investigators continue reviewing witness statements and physical evidence.

For now, however, one thing is certain.

The testimony presented during the initial detention hearing has transformed this case from a tragic boating accident into a closely watched criminal prosecution centered on allegations of repeated reckless conduct, alleged intoxication, and a devastating loss of life.

Stevenson remains in custody after the court denied pretrial release, and his next scheduled court appearance is set for August 5, where additional evidence may begin to emerge as the legal process continues. As with all criminal cases, the allegations against him must ultimately be proven in court beyond a reasonable doubt before any determination of guilt can be made.