For those interested, here's a recap of the game:
April 27, 2003 - FleetCenter
The Celtics entered Game 4 ahead two games to one and with a real chance to take control of a series in which they weren't supposed to have a chance. With the Celtics facing a 48-36 first half deficit, and knowing they didn't want to face a 2-2 series with two of the last three at Indiana, Paul Pierce put in one of the most outstanding performances in Celtics playoff history. Pierce scored 32 points in the second half, a Celtics playoff record for points in a half, highlighted by his dramatic buzzer-beating three at the end of the third quarter, with a trash talking Al Harrington right in his face. To go with a game-high 37 points, Pierce also pulled down 10 points for his third double-double of the series.
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I was there. One of the best games I've ever witnessed. When they did the Jack Nicholson --YOU CANT HANDLE THE TRUTH-- thing on the overhead TVs it got NUTS!