A former neighbor is being investigated as a suspect in a June 3 acid attack on a couple living in the 400 block of Cypress Drive, according to Laguna Beach police.
The former neighbor has been interviewed but not arrested, Sgt. Louise Callus said.
A hazardous material crew came to the scene after police were called by a female resident who reported that a man wearing a ski mask threw a rock through her living room window. Her husband went to chase him, but the masked man got away.
The suspect also spray-painted on their garage door, "Stalk Someone Else."
Police confirmed Monday that the suspect threw a bottle of butyric acid through the window. Later, as the couple gave their statement to the responding officer, all three began to feel sick.