On 30 September 2009, Semanský rode from Dvůr Králové nad Labem to Sudkov on a bicycle, a trip of about 300 kilometers, to borrow some money from his 72-year-old uncle.
[3] Unwilling to leave without the money, Semanský strangled his uncle to death and then stole 90,000 CZK with which he wanted to pay off his and his girlfriend's rent and to take care of his adopted daughter.
On 20 February 2011, Semanský learned that a 67-year-old relative of his, who was visiting from Prague, intended to report him for stealing alcohol and committing other crimes.
[3] He then traveled to the man's house in Lípa nad Orlicí, strangled him and initially hid the body by placing it on the bed, but then changed his mind and threw it down a well the following day.
[5] On 18 January 2012, Semanský decided to rob a house in Týniště nad Orlicí, which he previously broke into on 21 December 2011, when he had stolen less than 10,000 CZK.