It was only 15 to 20 minutes . '' Frein appears to have left notes after allegedly killing cop in Blooming Grove . Eric Frein , 31 , suspected in years ambush of 2 officers ; 2 died . Police say he planned attack for years .
Frein appears to have left notes after allegedly killing cop in Blooming Grove . Eric Frein , 31 , suspected in years ambush of 2 officers ; 2 died . Police say he planned attack for years .