Police have caught the suspect in the killing spree of ten people including his wife, son, father, a female bath house worker and three other employees at a car wash, both businesses he owns.
Zhou Yuxin was caught by the police in Dashiqiao, his home town, an hour ride from the crime scene in Anshan city, said the BBC.
The 33-year-old man is also suspected in the slaying of three members of the family of his landlord.
The killing rampage, which were not desribed in the reports, happened in Liaoning province in northeast China from Wednesday night until the morning of the following day, said Reuters.
Local police in a village near Anshan city said, "Ten people were found dead at a bathhouse and a neighboring car wash."
Investigators are suspecting "extra-marital affairs were possibly behind the killing."
Because the Chinese government largely bans private ownership of guns, the communist state is relatively free of such bloody crimes.
However, since 2010, at least 80 people were injured and 27 have died in a series of school stabbing across the country.
Details of this report here.