Illinois State Police said in a news release that 39-year-old Fulton County Sheriff’s Deputy Troy Chisum had responded to a battery and disturbance call around 2 p.m. in Avon, located about 45 miles west of Peoria.
While responding to the scene, officials said that "multiple shots were fired," and Chisum was shot and killed.
“On behalf of the Fulton County Sheriff’s Office, I would like to extend our deepest condolences to the family and friends of Deputy Chisum," Fulton County Sheriff Jeff Standard said in a statement. "Deputy Chisum dedicated his life to the service of his community. His legacy and sacrifice will forever be remembered.”
Chisum was a four and a half year veteran of the sheriff's office and was also a paramedic with the Fulton County EMA. He was also a member of the West Central Special Response Team, and the ILEAS WMD/SRT Team, Region 6, according to state police.
The suspected shooter had barricaded themselves at a home in in the rural community, and drew the response of multiple police departments to assist with the "ongoing situation."
State police said the suspect remained barricaded as of Tuesday night. The agency did not release additional information as of Wednesday morning.
The shooting drew a massive response of law enforcement, including officers from the U.S. Marshals in addition to drone and helicopter presence, WEEK-TV reported.
A large procession of law enforcement traveled from Avon to OSF St. Francis Medical Center in Peoria, Ill. on Tuesday night as Chisum's body was transported after the shooting.
The Illinois officer is the fourth member of law enforcement shot and killed in the line of duty in the past week. As of late June, 60 officers have died in the line of duty in 2019, with causes ranging from being hit by vehicles to suffering medical emergencies, according to data from the Officer Down Memorial Page.