t was still surrounded by crime scene tape on Wednesday, with  do not enter  signs posted on the door.

 They were a very nice couple. No problems. Quiet. Went to work every day,  Ellis said.

According to court documents, O'Neal Fleming has a twin brother. His twin told Kenosha police he believed O'Neal Fleming was  erratic, delusional and in some sort of mental health crisis. 

The twin told investigators O'Neal Fleming was in Chicago. U.S. Marshals arrested the 33-year-old there late Tuesday and he remains in custody in Cook County, Illinois.

Kenosha authorities have not yet filed criminal charges against O'Neal Fleming. Kenosha police told WISN 12 News they plan to refer charges once the extradition process begins, and that he will likely be extradited to Seattle first, due to the open homicide warrant out for his arrest.

Kenosha police detectives went to Chicago, where O'Neal Fleming is in custody on Tuesday to try to interview him, but said he refused to answer questions.