A ten month-old Indianapolis, Indiana boy was hit in the knee by a gunshot that passed through two apartment walls. The shot was fired from outside the building.  He is recovering at the hospital. 

Police do not know who fired the shot.  Nor do they know why the shot was fired.

Source:

“10-month-old Boy Shot Inside Apartment; Suspect at Large,” WISHTV.COM8 (May 26, 2020).