The manhunt for convicted killer Danelo Cavalcante has now entered its eighth day with details beginning to emerge about how he managed to escape from prison in Pennsylvania. Cavalcante, 34, escaped from Chester County Prison days after he was sentenced to life without parole for stabbing his ex-girlfriend Deborah Brandao, 31, to death in front of her two small children. He is also wanted for a 2017 murder in Brazil. Authorities said during a press conference on Wednesday that he broke out by climbing onto a prison building roof from one of the exercise yards. Newly released surveillance video shows Cavalcante crawling up a wall at the prison before he disappears from the frame. Police said that he later managed to jump down to an area of the prison that had less surveillance. A tower officer tasked with observing the site failed to report the incident and Cavalcante’s escape was only noticed later during a head count. He was last spotted near Chandler Road, Pennsbury Township, on Tuesday evening. Local and federal law enforcement searched the area for hours but did not locate the fugitive. Members of the public are urged to secure their homes from the dangerous killer. Read More Danelo Cavalcante’s escape from Pennsylvania prison captured in newly released video How did Danelo Cavalcante manage to slip past Pennsylvania authorities twice? Father reveals terrifying moment escaped murderer Danelo Cavalcante broke into his home Danelo Cavalcante killed his girlfriend in front of her children. Now he’s on the run after a prison break