NEW : Suspect 's mother recounts in an Internet post a prison visit with Evan Ebel . Colorado 's governor says he has known Ebel since childhood . Authorities are working to link Evan Ebel , Thursday , to the killing of Texas 's prison chief . Evan Ebel died 28 after following a shootout with Texas authorities .
NEW : Suspect 's mother recounts in an Internet post a prison visit with Evan Ebel . Colorado 's governor says he has known Evan Ebel since childhood . Authorities are working to link Evan Ebel , 28 , to the killing of Colorado 's prison chief . Ebel died Thursday after following a shootout with Texas authorities .