Suspects in murder of German businessman arrested in Bangkok Tuesday night

Olaf Thorsten Brinkmann, one of the suspects in the murder of German businessman Hans Peter Mack, was arrested Tuesday night in the On Nut district of Bangkok. He was immediately taken for questioning to Nong-Prue police station in Chonburi province, the district in which Mack's body was discovered.

Another suspect, Petra Christl Grundgreif, had turned herself in during the afternoon. She is charged as a co-conspirator in the murder and concealing, transporting and dismemberment of a body.

Petra was interrogated for 5 hours, then her visa was cancelled and she was denied bail. She is thought to have acted as a decoy, to lure Mack to his death.

Another suspect in the case is Nicole Frevel, a German National who was renting the house in which the victim's dismembered body was found. She was interrogated after being released from hospital, where she was treated for an apparently self-inflicted wound on her wrist. She claims to have been forced to keep the freezer in her house and was told to not touch it.

The body of Mack was found in a rented home in Pattaya on Monday and the identity was confirmed early Tuesday morning.

His remains were discovered in a large freezer in the house, after police had tracked his movements via CCTV since he was reported missing on July 4th.

The white freezer, which was plugged in, was sealed with black tape.

According to the Nong Prue police, the freezer was transported to the house in the bed of a pickup truck, allegedly belonging to Olaf.

The truck was first driven into Nong Hin Soi 5 and then left the lane with the freezer securely covered in the truck's bed. It travelled to the house where the body of Mack was eventually discovered.