What kind of strategy is otb red baron employing here with this turn overbet? His hand has no equity, so it is unusual.

PokerStars Hand #167383873997: Hold'em No Limit ($25/$50 USD) - 2017/03/10 10:23:25 ET
Table 'Algunde II' 6-max Seat #1 is the button
Seat 1: OtBRedBaron ($6452.82 in chips)
Seat 3: hhecklen ($5045 in chips)
Seat 4: LLinusLLove ($10265.65 in chips)
hhecklen: posts small blind $25
LLinusLLove: posts big blind $50
OtBRedBaron: posts the ante $10
hhecklen: posts the ante $10
LLinusLLove: posts the ante $10
* HOLE CARDS
OtB_RedBaron: raises $88.35 to $138.35
hhecklen: folds
LLinusLLove: calls $88.35
FLOP [2d 8c Jd]
LLinusLLove: checks
OtB_RedBaron: bets $75.83
LLinusLLove: calls $75.83
TURN [2d 8c Jd] [Jc]
LLinusLLove: checks
OtB_RedBaron: bets $659.46
LLinusLLove: calls $659.46
RIVER [2d 8c Jd Jc] [Qc]
LLinusLLove: checks
OtB_RedBaron: bets $1206.19
LLinusLLove: calls $1206.19
SHOW DOWN
OtB_RedBaron: shows [5s 4s] (a pair of Jacks)
LLinusLLove: shows [Js 9s] (three of a kind, Jacks)
LLinusLLove collected $4212.66 from pot
SUMMARY *
Total pot $4214.66 | Rake $2
Board [2d 8c Jd Jc Qc]
Seat 1: OtB_RedBaron (button) showed [5s 4s] and lost with a pair of Jacks
Seat 3: hhecklen (small blind) folded before Flop
Seat 4: LLinusLLove (big blind) showed [Js 9s] and won ($4212.66) with three of a kind, Jacks