Oto Biederman

In the spring of 1993, SAFE-GUARD's operational director Ivan Vrábel was scheduled to work with two other employees, Roman Procházka and Jiří Šťastný, whom planned to a Krone department store in Prague. The guarding of the facility was provided by their agency, so they had a good overview of the building's security. Procházka and Šťastný had to get in service uniforms to the back door, eliminate the guard and rob the safe. None of them, however, was willing to kill the guard, and so, they convinced Oto Biederman after two previous unsuccessful attempts. On the night of July 6–7, Šťastný, Procházka and Biederman went to the Krone department store dressed in the uniforms, which was located on the corner of Jindřišská Street and Wenceslas Square. As Procházka guarded the building's front, Biederman attacked the guard Josef Dovhanič with a tonfa. When he fell on the ground, the two criminals cut him with a wire before finally stabbing Josef with a knife and a needle. The trio took away more than 3,000,000 koruna from the store, from which Biederman only received 200,000.

In the spring of 1995, Martin Srb, owner of a small gloves factory, mentioned his planned trip to the United States, for which a large amount of money had to be prepared at his vault at home. The gang, who knew Srb, chose to lure him to a lonely place, kill him there, and rob the keys from the safe that he was supposed to carry around. On the evening of June 1, Biederman and Jaroslav Pavlíček met Srb in the village of Škvorec, inviting him to a billiard club in Prague 21. They strolled towards a deserted parking lot, where someone was supposed to join them. As soon as Srb stepped out of his car, Biederman approached him and shot him twice in the heart and head. The body was then taken to the house of another accomplice, Milan Chládek, but only found 7,000 koruna and a few details when they searched the corpse. The criminals then buried the body, and Srb's vault had to be seized without the keys. His house was kept for a days, and only after the deceased's wife and children left, the gang members got inside and stole the safe. They cut it in Biederman's house, but did not find any money. This was due to the fact that after her husband's disappearance, Srb's wife had taken all the money from the house. She also told the authorities that she had seen Biederman and Pavlíček on the day of the murder, but there was not conclusive proof to the allegations.

On June 7, 1995, Biederman and Chládek decided to rob a gas station, choosing the 'MOTA Pump' in Prague 9. While Chládek was watching the car, Biederman asked Langer for a pack of cigarettes. As they went in, he aimed at his head with a revolver and instructed to take out the money. Langer handed over a wallet with 30,000 koruna to Biederman. At that moment, Chládek opened the door to check the situation, causing Langer to move and Biederman to subsequently shoot him in the head. When the latter was leaving, he shot again. Together with Chládek, all the stolen money was spent that same night at a nightclub.

Another one of Biederman's victims became the former accomplice Pavlíček. He had inherited land in Prague, which Ivan Vrábel wanted to take possession of and use them for business. Vrábel told Pavlíček his intention to buy the land at a fair price, scheduling a meeting on September 28 together with Biederman, who would pick him up at his parents' house. The former invited the latter to his room and settled Jaroslav on the couch, before opening a wardrobe, taking out a submachine gun and shooting Pavlíček six times. Because it seemed that he was still moving, Biederman stabbed him in the heart with a dagger. He then put the body in the wardrobe and buried the body at night near the house. His family was present at home during the murder, but they weren't surprised from the gunshots, as Oto reportedly often shot in his room. However, the gang did not gain any land, because it was not fully transferred to Pavlíček at the time of his death.

At the end of 1995, Vrábel was approached by a group of entrepreneurs in Litvínov. A pair of men from the Vsetín District owed 2,000,000 koruna for the taken goods, and so the entrepreneurs had therefore chosen for one of them to be murdered. The victim chosen was Tomáš Bleier. The gang members to undertake the job were Chládek, Biederman and a new member - Miroslav Karnoš. They would lure him with a profitable deal, and at their first meeting in Valašské Meziříčí, Bleier told them he was only interested in the trade of non-ferrous metal. Under this pretext, the group invited him to the Apollo Hotel on January 17, 1996. Biederman secured a hotel room using a stolen ID card, in which he, Karnoš and Bleier would meet in, with Chládek waiting prepared in the car. They began discussing the sale of copper. Bleier, however, settled in a chair, making it impossible for a planned attack. It was only when he was asked about the size of the promised copper that Karnoš had prompted him to the window to show a warehouse near the hotel. As Bleier stood up and walked to the window, Biederman put his hand over his mouth and stabbed him in the stomach with a dagger. When Bleier slumped down, both men punched him several times in the throat and chest. They robbed the body, put it in bed, locked the room and broke the key and lock.[2]