Finally after month of investigation, the Philippine National Police already establish a real lead over the death of two victims in Ergo Cha Milk Tea House poisoning in Sampaloc, Manila.
According to PNP, victims body were found positive of Oxalic Acid, a colorless crystalline solid that is commonly use for household cleaning or bleaching.
The PNP Crime Laboratory (PNPCL) Director, Chief Superintendent Theresa Ann Cid told the media that Ms. Suzaine Dagohoy’s cadaver was tested positive for Oxalic Acid based on the findings of forensics from the PNP Crime Laboratory in Camp Crame, Quezon City.
On the other hand, Mr. William Abrigo's (owner of Egro Cha Milk Tea House) blood and stomach contents are positive for Oxalic Acid as per MPDCLO Chemistry Report.
PCSupt Nana said that the milk tea, powder (Hokkaido), and syrup, which were recovered by MPD from the crime scene, were found to be positive for Oxalic Acid per examination conducted by the CHEMPRO Analytical Services Laboratories, Inc., a private laboratory analyzing various types of samples, through the Food and Drugs Administration (FDA).
Sources : PNP /PIA