Plans for making bombs and poison gas were later found after a search of the man's car and bedroom, prosecutors said. Dominick Sergio Maldonado, 20, was ordered held on $2 million bail after pleading innocent Monday to multiple charges.
According to the court documents released Monday, Maldonado told detectives he had been humiliated during a troubled childhood and that recent problems made him want to be "heard." A text message to his ex-girlfriend minutes before the rampage said he was about to show the world his anger, the woman said.
Six people were injured, one critically, in. Maldonado surrendered about four hours after he ducked into a music store and took four hostages, all of whom were released unharmed, authorities said.
In the documents, prosecutors said Maldonado, of Tacoma, denied intending to shoot anyone, but was trying to draw media attention.
Police said they got a call just before the melee erupted, with the caller saying he was armed with two assault rifles and about to start shooting. When the dispatcher asked the man where he was, he replied, "Just follow the screams," the papers said.
The documents said police searched Maldonado's car and bedroom, finding a formula for making the poison gas ricin, as well as bomb-making diagrams and materials, and body shooting targets.