Vilna, Slavita and the Rebbe's Sefer Torah

In the mind 1830s, the Slavita Print House, then headed by Reb Shmuel Aba and Reb Pinchas Shapiro, began printing the fourth edition of the Slavita Shas. At the same time, the Romm publishing house in Vilna began printing an edition of their own. A dispute broke out between them, one that roiled the Jewish world. The end was a tragic one. How is that connected to the small Torah known as ‘The Rebbe’s Sefer Torah’?