Email claims prison official warned Danelo Cavalcante was 'planning an escape'

About eight hours after convicted murderer Danelo Cavalcante crab-walked out of a Chester County prison in August, a prison official sent the acting warden a message: Cavalcante had been "planning an escape" for months.

Chester County Prison Sergeant Jerry Beavers emailed Cpt. Harry Griswold about information he'd received from another employee.

"I am just sending this cause I don't want this to come back on us or (Corrections Officer] Hernandez in anyway," read the email sent just before 4 p.m. ET on August 31 - the day of the breakout - from Beavers to Griswold.

"He noted back in July that this inmate was planning an escape," Beavers went on in the email, obtained by CNN.

The email shows Griswold then forwarded that note to Howard Holland, the acting warden of Chester County Prison, shortly before 5:30 p.m. that same day.

"This was sent to me this afternoon and I have not forwarded it [to] anyone else," Griswold wrote. "I am not sure how you want to move forward with this information internally."

The email is just the latest fallout from the prison escape and manhunt, which lasted for two weeks and left multiple communities in Chester County on edge at the end of the summer.