The victims were identified as Lita Tan, a businesswoman, and her daughter Susan, 35, single, a teacher at the St. Peters School in Manila.
Investigators said the killer broke into the Tans home at about 9 p.m. They suspect that robbery was the motive.
The elder Tan had multiple stab wounds in the body, while her daughter was tied up and smashed on the head with a hard object. James Mananghaya