Instructions: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) Leaseholder Derick Almena and tenant Max Harris each were charged with 36 counts of involuntary manslaughter in the December fire at Oakland's Ghost Ship warehouse, said Alameda County District Attorney Nancy O'Malley. The blaze broke out during an electronic dance party, killing those who could not escape from the dilapidated two-story warehouse. One of two exits to get away from the fire had been blocked, authorities said. O'Malley told reporters on Monday that the two men "knowingly created a fire trap with inadequate means of escape. They then filled that area with human beings and are now facing the consequences of their action."Lease holder is among two men charged in connection to deadly blaze, DA saysThe fire broke out at an electronic dance party in December, killing 36 people 
 Question:The probable cause document said _ "allowed and encouraged tenants to use nonconventional building materials that he collected to create their living spaces.
Output:
Derick Almena