Police are calling a January burglary of a northwest suburban home "disturbing"--not just because of the stolen goods, but because the young burglars killed goldfish to avoid leaving "any witnesses."

According to TribLocal, a Nintendo game system, CD player, 30 video games, 30 DVDs, a BB gun, jewelry and fire safe containing personal papers and photographs were stolen from an Arlington Heights home sometime between Jan. 22 and Jan. 24.

When the homeowners returned, not only did they find their belongings stolen, but found their goldfish had been poisoned. Someone had poured hot sauce, mustard, ketchup and spices into their fish tank, and all three fish were dead.

Three teenagers were arrested for the burglary, according to the Daily Herald, and a 16-year-old involved with the incident reportedly told officers he "didn't want to leave any witnesses," so he killed the fish.

The boys, ages 15, 16 and 17, allegedly targeted the home because it had been evacuated following a Jan. 19 fire.

Police called the goldfish killing "disturbing," and the 16-year-old faces cruelty to animals charges in addition to a residential burglary charge. He and his two accomplices will be tried in juvenile court.