Jen Kurinky, of Bay Village, Ohio, was reading to her 3-year-old daughter, Ana, in her bedroom when she heard a bang that she thought was a limb falling on the roof. The next day, her father, Keir, discovered a bullet hole in Ana's bedroom closest.
"The cop said that if those two bullet fragments had hit Jen and Ada, they could have easily killed both of them," said Keir.
Police say the bullet came from next door, from inside the neighbor's house. They add that the bullet was homemade and the gun was an AR-15 assault rifle.
Police are pursuing misdemeanor charges against the 19-year-old gun owner. The chief said the teenager legally obtained the weapon and he had no other weapons.
Under federal law, those 18 and older can legally buy assault weapons provided they aren't prohibited from possessing firearms.