(Cornelius, OR) -- A man is facing charges after allegedly throwing an explosive device at a home in Cornelius and firing shots through the door. It happened last Thursday. Investigators say it was a targeted attack, and the suspect knew the victim. Police waited until the suspect, 37-year-old Samuel Lund, left his home in Beaverton on a bike and arrested him. A search of his house found additional explosive devices. He's charged with four counts of attempted murder.