Federal authorities filed a criminal complaint Wednesday against a San Francisco daycare worker for possession of child pornography.
Jace Wong, 26, who previously worked at a child care facility in Livermore, posted a series of videos and still photos in a private chat group on the social media platform Kik, according to an affidavit submitted Tuesday to the U.S. District Court for the Northern District of California by FBI Special Agent Benjamin Burnheimer.
The chat group was called "Younger love (heart emoji) (heart emoji)," and according to an undercover officer working with the FBI, was used to share "child sexual abuse material."
The affidavit says that Wong posted three videos and two still photos last Friday. In each, a girl between the age of 4 and 6 was seen in a bathroom partially disrobed. In each picture, black and white floor tiles and beige toilet dividers were visible.
On Sunday and Tuesday, the undercover officer engaged Wong in chat on Kik about the images. Wong asked if the officer was interested in trading "content," then sent a 36-second video of a young girl in what appeared to be the same bathroom.
Authorities used social media clues to determine that Wong worked in a San Francisco preschool facility and by tracing Wong's cellphone were able to locate the facility.
Agents began to surveil the facility at 2:45 p.m. Tuesday and observed Wong in the building with children. Wong was arrested that afternoon after he left the daycare.
The affidavit says that upon inspection, the bathroom tiles at the daycare facility matched those in the videos and photos.
Wong was interviewed by authorities on Tuesday evening. According to the affidavit, at that time Wong admitted that he had sent and received sexually explicit photos of minors on Kik, including at least three videos taken at the daycare facility.
During the interview, Wong allegedly showed agents a hidden file on his phone with 428 media files, "many of which contained videos and images of minors engaged in sexually explicit conduct."
Agents also found an 8-minute-long video depicting sexual activity between a man and an underage girl.
Wong has previously worked in other daycare facilities, including one in Livermore that has not been publicly identified. According to the affidavit, agents are working to identify those facilities.
Wong is charged with possession of child pornography, which carries a maximum penalty of imprisonment for 20 years and a fine of up to $250,000.