Freddie Gray's autopsy report

Freddie Gray suffered a single "high-energy injury" to his neck and spine — most likely caused when the police van in which he was riding suddenly decelerated, according to a copy of the autopsy report obtained by The Baltimore Sun in June.

The state medical examiner's office concluded that Gray's death could not be ruled an accident, and was instead a homicide, because officers failed to follow safety procedures "through acts of omission."

Though Gray was loaded into the van on his belly, the medical examiner surmised that he may have gotten to his feet and was thrown into the wall during an abrupt change in direction. He was not belted in, but his wrists and ankles were shackled, putting him "at risk for an unsupported fall during acceleration or deceleration of the van."

The medical examiner compared Gray's injury to those seen in shallow-water diving incidents.

Read an excerpt from the report here

Officer William G. Porter's recorded statement played for jury

Officer William Porter told police investigators that he saw no reason to call a medic for Freddie Gray, but was poised to take him to a hospital for treatment.

In a video recorded statement five days after Gray suffered a severe spinal cord injury following an arrest, Porter said he knew Gray from prior interactions and that he had a reputation for being difficult to arrest. He said Gray seemed lethargic, but responded to questions and did not articulate a specific medical problem.

"I said, 'What's your deal, what's wrong with you. .. He doesn't say anything, just 'help,'" Porter told the investigators. Later, he said, "He doesn't ask to go to the hospital ... I offer, he says yes."

Police training instructors have testified that it is department policy to call for a medic for anyone who appears injured or asks to be taken to a hospital. Porter told investigators however that arrestees regularly feigned injury to avoid going to jail, and that medics routinely wouldn't respond when requested unless an "exigent" situation was apparent.

"The medic won't take a prisoner if we already have a transport vehicle," Porter said. "You transport them in the wagon."

Porter said that regardless of whether Gray was hurt, he recognized that Central Booking would not accept him and that he would need to go to the hospital. When the police van stopped at North and Pennsylvania Avenues, Porter said he told that to Sgt. Alicia White, and she directed Porter to accompany Gray to Bon Secours.

After the van arrived at the Western District station to drop off another prisoner, Porter said Gray was unconscious and not breathing. "Oh s---, we need to call for a medic," he recalls the officers saying.

Porter's statement was played during the testimony of Det. Syreeta Teel, the lead police investigator in Gray's death. Under cross-examination, Teel said that she considered Porter a witness, not a suspect, and did not follow protocols for interviewing a suspect for that reason.