Eye witness accounts relate how F Company launched an assault on two German 88mm guns in Eindhoven (Woenselsestraat) with Private Modracek in the left flank. Either a mishandled grenade or a mortar shell detonating in the mortar tube, exploded, sending shrapnel into his chest, killing him. His name is one of 22 inscribed on the Eindhoven monument to the liberators from the 101st.
He celebrated his 23rd birthday three days before he died. He is buried in Shueyville Cemetery in Johnson County, Iowa.