
Four people are now in jail after investigators say a prison break in Chester County was thwarted.
Investigators say for the past two months, two inmates in the Chester County prison were allegedly planning an escape.
Investigators say the two inmates were working with others from the outside.
According to investigators, the women tested methods to break the glass in a prison visiting area.
Chester County District Attorney Tom Hogan says this was the most detailed plan investigators have ever seen.