Another casket, knife and 10 more bone fragments were fished out of a pond today near the home of the serial killer suspect who’s earned the creepy title “Metal Casket Killer” from the media.

Police said that at around noon today, divers discovered the 1-meter box in the 3,200sqm pond near the Bang Khae home of Apichai “Ice” Onkvisit, the same pond where they previously found hundreds of bones submerged. The additional bones were found inside, bringing the total bone fragments recovered from the pond to more than 300.

Police today said they are still waiting for forensic results to figure out who the bones came from.

Metal Casket Killer: Missing Bangkok girl may be among bones found at serial killer suspect’s home

The horrifying case came to public attention earlier this month when police found the body of 22-year-old Warinthorn “Kuk-Kik” Chaiyachet buried in a plastic bag when they first raided Apichai’s house. Afterward, divers retrieved nearly 300 bones from a pond meters from the property.

After one metal casket was found in Apichai’s house, police said the suspect confessed to forcing Kuk-Kik inside of it, then locking it and leaving her to die terribly inside.

Lt. Col. Pakkapong Pongpetra told reporters investigators cannot confirm the total number of Apichai’s victims. More than 40 divers are scouring the pond for more evidence. Pakkapong said authorities chose not to pump the water out since it would take more than a week.

Police are urging anyone whose missing family members might be connected with Apichai to contact them via hotline 191, 1599 or via the Petchkasem Police Station at 02-455-1718.

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Metal Casket Killer: Missing Bangkok girl may be among bones found at serial killer suspect’s home

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