James’ buzzer-beating 3-pointer lifts Cavaliers
Moments after blocking Victor Oladipo's possible go-ahead driving layup, James caught the inbounds pass, took two dribbles and dropped the winner over Thaddeus Young.
As Cleveland's sellout crowd exploded, James hugged rookie teammate Cedi Osman before jumping on the scorer's table to celebrate another of those moments that will define his career.
James finished with 44 points, 10 rebounds, eight assists and went 15 of 15 from the line.
Kyle Korver added 19 points and Cleveland's much-maligned defense tightened just in time as the Cavaliers seized their first lead in the first-round series after being down 1-0 and 2-1.
Cleveland can close out Indiana with a win Friday night in Indianapolis.
Domantas Sabonis scored 22 points, and Young had 16 for the Pacers, who battled back to tie it 95-all on Sabonis' 15-foot jumper with 33 seconds left. Indiana, which held Cleveland without a field goal for more than seven minutes during their fourth-quarter rally forced James into a turnover and had a chance to re-take the lead.
Oladipo, who shot just 2 of 15, drove the left side and was at the rim when James swooped in for a block on a play reminiscent of his Game 7 block on Andre Iguodala in the 2016 NBA Finals.
Oladipo's shooting woes continued. He's only 12 of 50 from the field in the last three games. He scored 32 in the Pacers' Game 1 win, but the Cavs have been double-teaming him ever since.
The third quarter has been a major problem for Cleveland all season. The Cavs had tried everything to try and shake things up after halftime, even doing layup lines at the break in Game 4 like a high school squad.
Turns out, all it took was some defensive intensity.
Cleveland outscored Indiana 32-17 in the third, when the Pacers shot just 5 for 16 (31 percent) and committed seven turnovers.
The Cavs were again without starting point guard George Hill, who missed his second straight game with back spasms.