The man, who shot a pregnant woman earlier on Wednesday in the southern town of Dimitrovgrad, has been arrested.
The woman was shot in the chest as she walked out of a shop, accompanied by her husband. The condition of the victim is stable even though the bullet landed in the lungs, near the heart.
The woman's husband, called Todor Zapryanov aka the pill, was the target of the assaulters, police said. Zapryanov was also arrested after he returned fire. Reports say he trades in imported cars from Austria.
The attack occurred in downtown Dimitrovgrad, where Zaprynov's mother owns a refreshment booth.
Police has sealed off the area.