MIAMI (CBSMiami) – The driver of the vehicle that allegedly struck and killed Kaely Camacho was taken into custody Friday afternoon.

Sandor Guillen had been serving house arrest since posting $205,000 bond following the deadly drunk-driving accident.

Guillen is charged with DUI manslaughter.

“This is a very horrible occurrence,” Guillen’s attorney Bruce Lehr said. “It’s terrible that a young girl died, but he has been playing by every rule given to him.”

On Friday, Judge Ellen Venzer ordered Guillen return to jail after she learned he failed a drug test. She said he tested positive for amphetamines, a violation of the conditions of his bond.

Guillen said he was taking Adderall, an amphetamine and a medication for Attention Deficit Hyperactivity Disorder (ADHD).

His attorney said it was prescribed to Guillen, but when the judge asked about Guillen’s prescription and the doctor who provided it, he struggled to provide answers.

“What I have is a defendant who doesn’t know the name of his doctor,” Judge Venzer said. “(He) takes the medication at his leisure and at his pleasure.”

On Monday, Guillen’s attorney will have to provide a legitimate prescription so the judge can decide whether he can be released.

When asked about his client’s behavior in court, Lehr said, “Sounds like he really was nervous. Who wouldn’t be?”

Kaely Camacho, 13, was killed when Guillen’s SUV T-boned her father’s minivan at U.S.1 and SW 184th Street in Southwest Miami-Dade on April 13, 2012.

Police said Guillen was driving 100 mph on the Miami-Dade busway.

His blood-alcohol level was .26, more than three times over the legal limit.