Two people were being questioned Wednesday in connection with a South Chicago neighborhood apartment fire that killed four people, including three young sisters.
No charges have been filed in the fire, but it is being investigated as an arson.
The fire killed Kirk Johnson, 56, according to the Cook County Medical Examiner's Office. Three sisters -- Shaniyah Staples, 7; Madison Watson, 4; and Melanie Watson, 3 months; who lived in a top-floor apartment -- were also killed.
On Wednesday, outside the apartment complex near East 81st Street and South Essex Avenue, a memorial was set up for the victims.
Meanwhile investigators found nine locations where accelerants had been used, both inside and outside the building, including at a wooden stairwell.
Sharon Moore, a neighbor, brought her grandson, to the site Wednesday to say a prayer for the victims. Kyran, 7, placed an angel next to the stuffed animals and candles. Moore said the fire hit close to home.
"When I was 15, I was in a fire just like this. We did have two people die in the building, in the courtyard, the same way. I grew up over here all of my life, so it touched me. It's sad," Moore said.