Malaysian Flight 370 At the Bottom of the Ocean? Intentional Or Catastrophe?

It's hard for me to believe that so much of the oceans on our planet are unmapped. We know more about the planet Mars and our Moon, than we know about the oceans. Since our planet is mostly made of water , it's difficult to understand why there is so little mapping of the ocean floor, especially with modern technology. I gather after this horrific mystery is finally solved, more will be done and changes will be made to ocean mapping as well as aviation tracking systems.
There has been endless commentary and opinions on CNN regarding the mysterious disappearance and presumed crash of Malaysian Airlines Flight 370.  I admit to watching a lot of the coverage, like others. I have even stayed up after midnight (though that's not unusual for me) to watch press conferences taking place in Australia at 12:00 noon.  CNN anchors, encourage viewers to "stay with us," as if it was 8:00 in the evening instead of 12:30 at night. At times I'm captivated by the mystery. Or perhaps I'm procrastinating (which I'm very good at), as I should be spending the time reviewing notes for a talk I have to give. Anyhow,  I find the commentary very interesting, especially when experts talk about theories, modern ocean technology and the probable cause. It's probably one of the greatest mysteries, certainly the greatest aviation mystery in my lifetime. I have always been intrigued by the Amelia Earhart mystery, which has never been solved.
I can't even imagine the suffering of the families since this has dragged on for over a month, with conflicting stories and false hopes. My heart goes out to them. And I pray for them.
In my opinion, after listening to the experts, I think that someone hijacked that plane, either a crew member or someone else. Someone was trying to make it disappear and if it wasn't for modern technology they would have succeeded.  According to the latest accounts and new information regarding the pings, that plane, sadly is at the bottom of the Indian Ocean. It's hard to believe that no debris has been found, this is a very large airplane. So strange.
I see the devil's "hand" in this. Evil thoughts, nefarious actions, the killing of innocent people and children, who else can be behind this horrific mystery, but evil?
NJA