A California family discovered a circular hole cut into the window of a 1-year-old boy's nursery, KGTV reported.

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"This isn't something really random. This is something calculated," the owner of the Imperial Beach home, who identified himself as Vanya, told KSWB. "There's something especially chilling about this, I think."

Vanya said he and his wife were returning from the movies when they received a call from their daughter. The girl had felt a draft in the house.

"She went around and found a perfectly cut hole in our son's nursery," Vanya told KSWB.

When he got home, Vanya said he noticed the window lock to the toddler’s room was broken.

“While I was reporting this hole to the authorities is when my spouse remembered that in the middle of the week she had heard glass being popped out and our son had been asleep upstairs and when she went up to check — thinking he woke up and broke something — she didn’t see anything and so she assumed it was commotion from the neighbors,” Vanya told the television station.

The burglar likely used a ladder to scale the 10-foot-tall building before pulling out a glass cutter. The roof tiles were found damaged, KGTV reported.
"Very calculated. It scared me. Intuitively, we know they've done this before and will do it again," Vanya told the television station. "What happens when they encounter someone's loved one? Would they run off or commit violence against them?"

Deputies continue to investigate, KSWB reported.