Fundamental error re-raising nut high here?

[Pale_Rider]

Thanks for sharing your knowledge guys, FWIW villain was mini rasing 2-3 times per orbit.

*** RIVER *** [Kd 8s 4s Ah] [5c]
HERO: checks
king pone: checks
*** SHOW DOWN ***
HERO: shows [Tc 8d As Ac] (HI: three of a kind, Aces)
king pone: shows [3d 2s 4h Kc] (HI: a straight, Ace to Five; LO: 5,4,3,2,A)
king pone collected $2.78 from pot
king pone collected $2.77 from pot

Amazingly he checked it down with only 1.99 behind him and saved me some $$$, then promptly left the table. If he did go all in on river would anyone call there or is that spewing?