INDIANAPOLIS -- Editor's Note: Some of the testimony detailed below is graphic.

The trial of Desmond Turner in the slayings of seven people inside an Indianapolis home in 2006 began its sixth day Monday with testimony from Dr. Jennifer Swartz, one of two pathologists who performed autopsies on the victims.

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Slideshow: 7 Killed In Indy's Largest Mass Slaying

Swartz went into explicit detail as she described the wounds three of the victims suffered. Swartz said the gunman shot one of the victims, Alberto Covarrubias Jr., 11, three times with a "high-velocity weapon," with the third shot to the back of the head that was so devastating that the child's brain was found outside of his head.

David Covarrubias, 8, was shot eight times, with the fatal shot hitting him in the chest, killing him within minutes.

Prosecutor Carl Brizzi acknowledged that the testimony is painful and tedious, but said it is necessary to illustrate the brutality of the crimes.

"Shattered and fragmented, those bullets are recovered if they're able to be, fragmented or not, from the body," Brizzi said. "Some of them are actually able to be examined by a ballistic expert … It's a matter of tying all the different pieces of evidence together."

In afternoon testimony, the prosecution called Michelle Clifton to the stand -- a friend of Turner's -- to testify about Turner's actions after the shootings.

Clifton said she and Turner saw him on TV with information that he was wanted in the killings.

"He looked at it and walked back and forth," Clifton said. "I was scared."

Clifton testified that Turner wanted to go to Kentucky, and that she, Turner and another of her friends drove to that state.

"If you did anything, you should turn yourself in," Clifton said she told Turner, adding that he didn't say anything about what happened.

After they arrived in Kentucky, Clifton said Turner wanted to go to Alabama, but she and her friend refused and they returned to Indianapolis while he slept.

Clifton also testified that Turner put clothes in the bathtub in her home to cleanse them with alcohol and hydrogen peroxide on the day after the slayings.

"This is a very intimidating and scary experience for witnesses," Brizzi said. "To have to sit across from the defendant and essentially help convict him is not an easy thing to do."

Courtroom artist Tina Hansford was friends with the family for more than 20 years and found the testimony tough to take.

"It was awful. I didn't like seeing all that, because he was my friend," Hansford said. "More poignant than anything were the little children. When they showed their little shoes and the graphic, grisly stuff, it was awful."

Brizzi said last week that he expects to wrap up his case on Tuesday or Wednesday, after which the defense will begin calling witnesses to the stand.

The bench trial, before Judge Robert Altice, is expected to last about two weeks. If convicted, Turner faces life in prison.