KENNETT SQUARE, Pa. (CBS) --, nine days after the .
The corrections officer who was on duty during Cavalcante's escape was fired Thursday afternoon, the Chester County District Attorney's Office confirmed to CBS News Philadelphia. A spokesperson for the DA's office said the corrections officer worked there for 18 years.
It continues to be all hands on deck as officers try to outsmart him and outnumber him within their perimeter.
"My intent is to pressure him contain him and capture him. He'll make a mistake," Lt. Col. George Bivens said. "He will become more desperate, he'll have to expose himself."
The search efforts appeared to focus on areas nearand will remain closed until further notice.
On Friday morning, a large law enforcement presence was at the nearby Pietro Industries on Schoolhouse Road, though that activity has since died down.
Pennsylvania State Police confirm they are investigating a break-in at the business and it may be connected to Cavalcante. It's not known if anything was taken.
As many as 400 state troopers and federal officers are searching for Danelo Cavalcante.
Lt. Col. Bivens said Friday the search perimeter has shifted west after obtaining trail camera video from Wednesday night showing Cavalcante in the area of Longwood Gardens.
State police said there have been eight confirmed sightings of Cavalcante.
by "crab-walking" up a wall in an exercise yard and getting onto a roof. He had been sentenced to life without parole for fatally stabbing his ex-girlfriend Deborah Brandao.
He is also wanted in Brazil, and court documents say Cavalcante arrived in the U.S. from Brazil as a fugitive.
Hundreds of officers are combing the area again Friday. There are some businesses and developed areas along with plenty of trees and undergrowth.
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