Just a guess, but when I landed at 12ish the winds were gusting over 32kts. Max X-Wind is 29 in the 757. (Winds were 160-21G32 which put the X wind at 28 kts) If he did not have an alternate, went missed once, he was probably Min Fuel or worse trying to make a landing out of limits. Weird to land on 10 for anything that was passenger or system related.