Police said Wednesday they have found a long jacket and an umbrella near a bloodstained kitchen knife believed to belong to the man who fatally stabbed a 19-year-old female college student Monday in Tokyo's Taito Ward.
The umbrella was found in a bush in a park about 250 meters from the location -- on a street -- where Mayuko Ogawa, a second-year student at Toita Women's College, was stabbed in the chest, abdomen and back.
The jacket was also discovered nearby, police said.
Investigators are examining the jacket for bloodstains.
The 20-cm knife was found Tuesday in another bush in the park, which sits beside the Sumida River, investigators said.
Witnesses described the killer as in his 20s or 30s, and said he was holding an umbrella as he fled the scene, running upstream along the river. Police suspect he discarded the umbrella in the park.
In addition to those items, police found a brown and white panda cap with eyes and ears in the park.