Is this just gambling or deep thinking?

[sirio11]

Hi all, I'm back to online tourneys and this is an interesting hand for the Grand Tournament V, 1k entry fee. Starting chips were 10k and 30 mins levels.

Blinds are 500-1000, about 180 players left from the original 637.

UTG has 100k, LP has 40k and BT has 70k

UTG raises to 4k, LP calls the 4k, BT then raises to 12k

Now, UTG folds and LP moves all in for 40k, BT calls.

LP- AK
BT- 77

I would like to hear your opinions on both players; Are they gamblers or good poker thinkers?

No reads at all in the players, I was just moved to this table.