Police found charcoal briquettes and a burner inside
TokyoReporter
Ryu Sugeno stabbed Sakiko Nemoto to death in Utsunomiya City in December
Suspect told police, 'I drank a lot of alcohol, but I have no memory of driving'
Suspects allegedly extorted ¥150,000 in cash from victims
Urine test gave positive result
Body likely belongs to man in his 70s
Bodies of victims chopped up and tossed into sea, police say
Suspect allegedly assaulted his former girlfriend and kidnapped her 11-month-old boy
Suspect pulled a knife on a female cashier
Police seized enough chemicals to produce about 8,200 MDA pills