3 greenfield police, along with several agencies, arrested a 20 year old man at his las casitas drive home early this morning -- on several sex-related charges ... 3 that's in salinas ... among the charges "oscar lucas" must answer to --- aggravated sexual assault with a child under the age of 14, threat to kill and penetration with a foreign object... he was also charged with possession of child pornography .. call the number on your screen -- if you know anything ... 3