SUSPECT: I USED COCAINE BEFORE KILLINGS

Rafael Chang got high on cocaine, then used his father's gun to shoot his
parents and 85-year-old grandmother in the head as they slept in their West
Miami-Dade home, according to court papers.

He then drove to the family's trailer on Key Largo to hide.

But the "statement of facts presented" to a county judge to secure a
warrant for Chang's arrest -- and released Thursday by the state attorney's
office -- offers no clue into what allegedly motivated the 41-year-old to
shoot his relatives.

The crime was discovered by Chang's sister Tuesday morning after she went
to the house, 10317 SW Third St., to drop her child off with her mother,
who cared for the baby while she worked.

When Maria Alonso, 32, opened the front door, she found her mother, Teresa
Chang, 63, "unresponsive and bloody, lying on the couch of the family
room," says the statement by Miami-Dade police homicide Detective Kanya Howard.

When officers responded to Alonso's call, they found Teresa Chang had been
shot once in the head, according to the statement.

Searching the rest of the house, they found Antonia Manso, Teresa Chang's
mother, in bed in the southwest bedroom with a gunshot wound to her head.

Enrique Chang, 64, was found in another bedroom, also in bed and shot once
in the head.

That morning, the Monroe County Sheriff's Office contacted Miami-Dade
police to tell them Rafael Chang had turned himself in to the public
defender's office in Tavernier in connection with the deaths.

The statement said that the couple's son, Rafael Chang, told two Miami-
Dade homicide detectives who went to Tavernier that he had gone to Miami
Beach at about 7 p.m. Monday night and had consumed cocaine.

When he went to his parents' house -- where he also lived -- between 10 and
11 p.m., he found them all asleep in different rooms. He got his father's
gun out of a closet and shot the three, the statement said.