Medical helicopter collision:

What: Bell 407 helicopter operated by Air Methods out of Englewood, Colo.
What: Bell 407 helicopter operated by Classic Helicopters of Woods Cross, Utah.
Where: Flagstaff Medical Center
When: Sunday
Who:Air Methods: 3 fatalities, including a patient;
Classic Helicopters: 3 fatalities plus one critical injury-- pilot, paramedic and patient died. Flight nurse in critical condition
two emergency ambulance ground crew suffered burns. Names not released.
Why: Flagstaff Medical Center doesn't have flight controllers.

Emergency Landing: Medical Chopper

What: medical helicopter
Where: Theodore Wirth Park en route back to base at Flying Cloud Airport in Eden Prairi
When: N/A
Who: No patients onboard
Why:grounded for 30 minutes due to weather

Emergency landing of commonwealth skyranger

What: small single engine refurbished Commonwealth Skyranger
Where: Denton County landing on an Interstate-35W exit ramp at Farm Road 1171
When: Saturday afternoon
Who: 72 year old diabetic pilot Doug Sockwell
Why: medical emergency (insulin)