Testimony on day six focused on forensic examination DCI agents conducted on Sanders-Galvez' cellphone, Facebook page, Instagram and other electronic communications devices.

KEOKUK — Circumstantial evidence continues to mount against accused killer Jorge "Lumni" Sanders-Galvez as prosecutors presented testimony Tuesday from investigators who conducted numerous forensic examinations of his cellphone and social media accounts.

Although prosecutors have no eyewitnesses and little DNA evidence tying Sanders-Galvez to the killing of Kedarie Johnson, a gender-fluid youth who was found shot to death in an alley March 2, 2016, on South Hill, they believe several key witnesses have tied the 23-year-old Galvez to Johnson's murder through the circumstantial evidence.

Matt George, a special agent with the Iowa Division of Criminal Investigation, spent about an hour on the witness stand Tuesday in South Lee County District Court testifying about a forensic examination DCI agents conducted on Sanders-Galvez' cellphone, Facebook page, Instagram and other electronic communications devices.

According to the testimony, the forensic examinations paint a picture of Sanders-Galvez' activities in the days preceding the killing and in the immediate hours after the discovery of the 16-year-old Johnson's body.

Some key pieces of evidence George testified about include:

• The term "dead zone" is used to describe how many times a person sends or receives telephone calls and text messages. If, for some reason, a person's normal activities completely cease, investigators often refer to it as the "dead zone."

According to George, Sanders-Galvez was involved in approximately 1,000 of those communications in the seven days prior to Johnson's death.

However, he did not send or accept any telephone calls or text messages during a two-hour period in the late evening hours the night Johnson was killed.

"We think that is important because we believe Kedarie was killed and his body subsequently recovered (about that time) the defendant's cellphone (entered a dead zone)," he testified.

• Shortly after Johnson's body was discovered, Sanders-Galvez made several comments on text messages and on Facebook posts that he was immediately returning to St. Louis, where his permanent residence was located.

Testimony at the trial has indicated Sanders-Galvez alternated his time between Burlington and St. Louis because he has an eight-year-old son living in the Burlington area.

• Sanders-Galvez and Johnson were mutual friends on Facebook. Johnson, a popular Burlington High School student, regularly alternated his attitude and attire between a boy and a girl based on his mood that day, family, friends and teachers have said.

Johnson had two Facebook pages: One page had a user's name of Kedarie Johnson and contained photographs of him as a male. His user's name on his second Facebook page was Kandicee Johnson, his female persona. On that page, the photographs were of Johnson dressed as a girl.

The user's name on Sanders-Galvez Facebook page was "Lumni Hoe" and its showed numerous photographs of him involved in various activities, including sexual videos involving him, Purham and an unidentified female at the residence in the 2600 block of Madison Avenue. His page also showed photopraphs of him holding a Smith & Wesson .357 revolver, the same type of handgun used to kill Johnson.

• The Facebook page in which Sanders-Galvez and Johnson were "friends" was on Kandicee's Facebook page. George testified he could not find any direction communication between the two men on either one of Johnson's Facebook pages other than the fact they were friends on Johnson's female Facebook page.

George is expected to return to the witness stand when the trial resumes at 9 a.m. today before District Judge Mary Ann Brown.

During four days of testimony, prosecutors have presented several other pieces of circumstantial evidence tying him and a co-defendant, Jaron "Wikked West" Purham, 25, also of St. Louis, to the killing of Johnson.

Purham is being tried separately. He was returned to Iowa from Missouri Sunday after waiving extradition. He was being held in Missouri on unrelated criminal charges since is arrest a few weeks after Johnson's killing.

His trial date has not been set.

Des Moines County Attorney Amy Beavers, assistant Iowa attorney general, Laura Roan, and Christopher Perras, a U.S. federal prosecutor, are expected to rest their case against Sanders-Galvez about mid-morning today.

Curtis Dial and Ronald Ellerhoff, two private attorneys appointed by the court to represent Sanders-Galvez, are expected to give their opening statement to the nine-woman, three-man jury immediately following the end of the state's case.

The defense is expected to call "six or seven" witnesses, but Dial has not said if Sanders-Galvez will take the witness stand in his own defense.

Closing arguments are tentatively set for either late today or early Friday with the jury beginning its deliberations following the closing summations.

Investigators testified at the trial Johnson was dressed as a girl when he was picked up in a red Impala containing Purham and Sanders-Galvez near the Hy-Vee store at Angular and Ninth streets a couple of hours before his body was found about 11:30 p.m.

Prosecutors claim the two men killed Johnson because they thought he was a "petite female" and intended to take him to a residence in the 2600 block Madison Avenue, where they often stayed while in Burlington.

According to Perras, Sanders-Galvez and Purham became angry with Johnson at the home on Madison Avenue when they discovered he was a male, not the “pretty, petite, female” they thought Johnson was.

“They (Sanders-Galvez and Purham) became angry when they discovered during the sexual act that Kedarie was biologically male,” Perras wrote. “They became enraged; and then, over the next hour, suffocated Kedarie by stuffing a rag down his throat and wrapping a plastic bag around his head, threw him in their car, drove to another part of town, dumped him in an alley, and shot him several times until he bled to death.

The jury was excused early Tuesday to allow Brown and the lawyers to conduct a hearing to determine if the jury should be allowed to hear testimony from a Missouri police officer, who arrested Sanders-Galvez' following a police chase several weeks after Johnson's death.

At the time of his arrest, Sanders-Galvez had several outstanding warrants for his arrest in Missouri charges.

Outside the presence of the jury, Brown said she would only allow the Missouri police officer to testify as a rebuttal witness if Sanders-Galvez takes the witness stand in his own defense.

Sanders-Galvez and Purham remain in separate areas at Des Moines County jail in lieu of a $2 million cash only bonds.

They each face a mandatory sentence of life in prison if convicted of killing Johnson.