Dang that is not good, I am guessing it was a single engine plane.
Edit: They updated the story
single-engine, four-seat Piper PA-28 Cherokee
Hopefully pickens upgrades thier planes looks like it was a 60's model.
I apologize in advance if I have misunderstood your tone, but as a professional aviator, nothing irks me more than hearing the condescending tone that the media and the uninformed general public use when referring to "small single engine planes." Believe it or not, light twin engine aircraft are statistically more dangerous than light singles, purely because the engines are not powerful enough to give the aircraft the ability to climb on one engine. Have you heard the old joke about how the second engine gets you to the scene of the crash? There is a certain amount of truth to that joke when dealing with light twins.
Single engine aircraft are as safe as the pilot in command and the mechanic make them. Many of them fly across this country every day without incident, and many of those are aircraft that were manufactured in the sixties and seventies. If we maintained cars as well as aircraft, many more people would be driving a '67 Chevy.
Yes, this is tragic. Pilots everywhere will read the accident report when it comes out, and hopefully learn something new, or have lessons taught to them by their instructors reinforced. This would be equally tragic if they died in a car accident, but how many people would ask why they were driving in a small, single engine car from the 1960's?
I will also wait for the completed NTSB report before I assign blame. Right now, I'll just pray for their families.