The Fatal Curve: A Reconstruction That Waits Six Hours

Immediate priorities:

1. Scene safety and traffic control. This is a fatal crash; the road itself is evidence. Close it and set up a detour rather than reopening at dawn.
2. EMS and the coroner; next-of-kin notification goes through the coroner.
3. Scene log - everyone who enters and leaves, with times.
4. Lighting and photographs before anything is moved.
5. The pickup driver: he is not free to leave, but he is not under arrest yet. Do not question him after any custody decision without Miranda. Note his exact statements, the odor, his eyes, speech, balance, and admission.

Evidence that degrades overnight:

• Skid and gouge marks get driven over; debris is scattered by passing vehicles; fluid and coolant evaporate or wash into the pavement.
• The truck's event data recorder can be overwritten or lost when the battery is disconnected during towing. Preserve it now by warrant or consent.
• Witness memory fades; get recorded statements tonight.
• The driver's blood alcohol is a closing window. Absorption and elimination continue at roughly 0.015 per hour. Missouri v. McNeely holds that natural dissipation alone is not an exigency, and Birchfield requires a warrant for a blood draw. His refusal triggers implied-consent revocation - it does not authorize a forced draw. Start the warrant now and document the timing of the request, the refusal, and the draw.

Tonight, before 06:00: photograph and measure the mark start and end points, the debris field, final rest positions, the helmet and its location, paint and glass transfer, and vehicle damage. Preserve the blood sample with a documented chain of custody. Collect any nearby surveillance video and 911 audio before retention windows close.

Physical evidence outranks statements. Build the geometry and see which story fits.

• Point of impact: derive it from debris origin, the start of the gouge, and the damage profiles on both vehicles. A left-front impact on the truck and left-side damage on the bike tells a different story than a head-on in the truck's lane.
• Speed: use the skid formula with a realistic drag factor for the surface and tires to get a minimum speed for the truck from its 31 feet of skid, and check whether the motorcycle's 62-foot gouge is consistent with a sliding crash or with a controlled passing maneuver.
• Sight distance: at 55 mph, stopping sight distance is roughly 425 feet with a 2.5-second reaction. If the curve limits sight distance to well under that, neither driver could have seen far ahead - which explains "came out of nowhere" without proving the motorcycle was in the wrong lane.
• Lane position: compare where the marks lie relative to the centerline. The witness's "over the centerline" statement either matches gouges and scrape marks in the southbound lane or it does not.
• Vehicle condition: lamp filament analysis for whether lights were on, tire condition, and whether the helmet was actually worn - a DOT helmet 40 feet away with no impact damage is a significant fact in a fatal motorcycle case.
• Reconstruction discipline: any hypothesis must account for every mark. A story that requires ignoring the 62-foot gouge is wrong, no matter who tells it.

Write the report so the reconstructionist can pick it up cold: measurements, photographs, diagram, and a list of what was preserved and what was not. Do not offer a conclusion about fault until the physics supports one.

Do not opine on charges in the report; supply the facts that let the prosecutor decide.

What must be developed:

• Cause and manner of death from the medical examiner, plus toxicology on the decedent - stimulants or alcohol in the motorcyclist change the analysis, and the defense will find it whether or not you do.
• The blood result from the warrant, with chain of custody, and the driver's statements and driving history.
• Speed and reconstruction findings from the reconstructionist, including a documented margin of error.
• Whether impairment caused the crash - not merely whether he had been drinking. The causal link is the element the defense will attack.
• The motorcyclist's own conduct: lane position, speed, license endorsement, helmet use, and whether a pass was in progress and legal.
• Witness statements recorded, signed, and consistent with where each witness was standing.

Possible charges range from DWI alone to involuntary manslaughter, depending on impairment and recklessness; charging decisions belong to the prosecutor, and your job is a complete packet.

Practical points:

• Keep the file organized and disclose everything, including facts unfavorable to the State.
• Do not let the pickup driver's vehicle be released before the reconstructionist inspects it, and do not let anyone tow it without preserving the event data recorder.
• The most common reason a fatal-crash case fails is an incomplete investigation, not a clever defense. Treat the six-hour gap as a test of what you preserved, not as an excuse.