> It looks like it was shot down with an air defense missile. You can see the plane on fire as it falls to the earth.
Come on. Don't do this.
Planes are complex machines. They're pressurized and propelled by a continuous explosion. There are lots of ways for things to go wrong.
A good rule of thumb in aviation is to ignore the first 24 hours of news. There are no facts. Everyone is an armchair crash investigator. And mindshare is competed for with salaciousness.
It could be an attack. It could be an air-defense error. Or it could be a mechanical error. One of countless possible mechanical errors. Either way, it's a tragedy to which no service is done by baseless speculation.