A man identified as Michal O. died in hospital on the morning of November 9, two days after a deadly shooting in Krakow’s Main Market Square. inPoland.net.pl reported the development on Monday, November 9, citing police in the Lesser Poland region.

Investigators said the 24-year-old drove his car into the square on November 7 and fired an automatic weapon at people in the area. Six victims were killed and 16 others were wounded, including two police officers.

Police later found three members of the suspect’s family dead in an apartment in Ostrowiec Świętokrzyski. According to the prosecution’s findings, the same person was responsible for both the Krakow attack and the deaths discovered in the apartment.

Prosecutors said the suspect’s death did not end efforts to establish a motive or identify possible connections. Autopsies on the six Krakow victims and the three people found in Ostrowiec Świętokrzyski were due to begin on November 9 and were expected to take up to two days because of the complex gunshot injuries.