Chicago authorities have managed to track most of actor Jussie Smollett's movements on the night he was allegedly attacked, but they have not seen footage of the confrontation itself, police confirmed in an update Thursday.
There are about 12 detectives currently working on the case, Chicago Police officer Michael Carroll told the Daily News.
Police are looking to speak to two persons of interest who appeared in a surveillance image released by cops on Wednesday evening.
Smollett _ an actor on the Fox series "Empire" _ was allegedly ambushed early Tuesday by a pair of attackers who placed a rope around his neck, poured an unidentified substance on him and yelled homophobic and racial slurs at him, according to police.
Officials are investigating the case as a possible hate crime. Smollett, 35, came out as gay in 2015.
No suspects have been identified, nor have any arrests been made.
Police say they've reviewed hours of footage, and that many cameras are present in the area they've been searching. Authorities previously announced that they were expanding the search area.
Smollett is in "good condition" after taking himself to the hospital, police said Tuesday.
