A 16-year-old boy found guilty of manslaughter in Helsinki last month is facing a series of charges in Pirkanmaa District Court.
Prosecutors allege that he stabbed a man over a five-euro note.
The charges the boy faces, which became public on Monday, include attempted robbery, attempted murder, robbery, and traffic safety violations.
If found guilty he would face a custodial sentence.
In February the boy was sentenced to nine years and four months in prison by Helsinki District Court in February for his part in the killing of an 18-year-old man in Vallila, Helsinki, on 31 October last year.
At the time of the Vallila killing, the boy was subject to a travel ban after being arrested on 6 October in Tampere. He was released on 23 October.
The new charges concern a series of incidents that are alleged to have taken place on 3 October in Tampere and Loimaa.
3 October 2020 timeline
According to prosecutors, the 16-year-old, along with a 15-year-old boy and a 15-year-old girl, were driving in the 15-year-old boy's mother's car in Tampere on 3 October.
They encountered the alleged victim in Tampere's Kaukajärvi neighbourhood. The 16-year-old is accused of approaching a man, armed with a knife. The boy admitted to asking the man for five euros, after which the man threw a glass at him.
The boy denies attempting aggravated robbery.
According to prosecutors, the alleged victim told the boy three times he had no money. In an incident caught on camera, the man fell to the ground and was stabbed in the upper torso, right thigh and lower right leg.
The court indictment says that the three youths then fled the area by car. They are also accused of stealing nearly 50 litres of fuel from a petrol station.
The 16-year-old is also accused of driving a car on a public road without a licence. Prosecutors say he was speeding and failed to stop at a stop sign. The boy then lost control of the car and crashed into a field, injuring one of the 15-year-olds.
The three are also accused of trespassing in a sauna building and staying the night.
Prosecutors seek a fine for the 15-year-old girl and a suspended sentence for the 15-year-old boy.