Beijing mourns No 51 on home court
With two seconds on the clock and an inbound pass from the backcourt, Lin had his last-gasp attempt but missed the shot.
Match referee ruled that Lin was fouled outside before Lin converted all three free throws with no time left.
Yang Linyi and He Xining hit consecutive three-pointers for Shenzhen, who led 26-22 after the first quarter through Shen Zijie's layup.
In his home debut, Beijing's Ekpe Udoh responded seven straight points into the second period. The hosts rode on a 10-2 run midway to level the score.
However, Shenzhen escaped again after a pair of threes from He and Lu Yiwen. Shenzhen players converted nine shots out of 14 beyond the arc to set up a six-point advantage back to the locker room.
Udoh scored 20 points in the second half. The two sides tied 71-all into the final period. Despite an eight-point lead with less than three minutes to play, Shenzhen had to swallow the loss against Lin's free throws.
Udoh contributed a game-best 34 points and 19 boards. Lin added 25.
