Another interpretation: take the case of one who pushed his fellow from the top of a tower and he died. Do we bring the court to the tower, or does the tower go to the court?
The Tower Does Not Go to Court
Yalkut Shimoni on Torah 331:3
דָּבָר אַחֵר, הֲרֵי שֶׁדָּחַף אֶת חֲבֵרוֹ מֵרֹאשׁ הַבִּירָה וּמֵת, הוֹלְכִין אֵצֶל בִּירָה אוֹ בִּירָה תֵלֵךְ אֵצֶל בֵּית דִּין.