A man was arrested early Monday on suspicion of being an accomplice of a man arrested earlier in connection with a robbery-murder in which a security guard was fatally stabbed.
Tang Boon Keat, 27, who told investigators he is Malaysian, was arrested on suspicion of stealing some 19 million yen from cash dispensers at a bank in Sayama, Saitama Prefecture, in April. He admitted to the charge, police said.
Tang reportedly said he acted with Hiroyuki Chiba, 42, who was arrested Sunday.
Chiba, a taxi driver, formerly worked for the same company as the slain security guard, police said.
Chiba and Tang allegedly took a spare key for the bank from the guard and stole 19.34 million yen from Asahi Bank's Shin-Sayama branch sometime between 2:40 and 4:50 a.m. April 30.
The guard, Takeru Matsutani, 26, was found stabbed to death in the Sayama Citizens' Hall the same day. The hall is about 3 km from the bank.
Tang has reportedly implied that he was involved in the slaying and robbery.
Chiba allegedly told police Sunday, "I killed Mr. Matsutani and stole the spare key for the bank from his car."
Chiba was a security guard until July 1997 at the same company where Matsutani worked, and once was in charge of security at the bank, police said.
They earlier said Chiba had several million yen in debts. They confiscated four cash storage boxes and about 6 million yen from his home in Warabi, Saitama Prefecture.