CNN, (WILX) - The disappearance of an 8-month-old girl is being treated as a homicide investigation, and the girl's mother's boyfriend is a suspect, police said Saturday.
"We're here today because we're frustrated and, quite frankly, angry because of misinformation and lack of information and lack of cooperation from those most closely involved. This is an 8-month-old child, and I think all of us would agree somebody would know the whereabouts," said Indianapolis Metropolitan Police Chief Bryan Roach.
The Missing Persons Unit was notified on March 16 that Amiah was missing.
The family of the girl initially said Robertson was last seen March 14 at her babysitter's house on South Holmes Avenue.
"The Missing Persons Unit, because of their expertise and experience, figured out quickly through their investigation that this was a little different than most missing person of a small child," Roach said. "We're telling you now that this is a homicide investigation, but it has been all week."
"On March 9 at approximately 1:15 p.m. Amiah Robertson was last seen alive and well with Robert Lyons in the 200 block of South Holmes," said IMPD Detective Jeannie Burkert.
Lyons, the boyfriend of Amiah's mother, 19-year-old Amber Robertson stayed on the southwest side until 10 p.m. when he returned to Amber without Amiah, Burkert said.
According to IMPD Lt. Bruce Smith, the baby was supposed to be taken to the babysitter,.
The babysitter said Amiah was never brought to her.
The babysitter and the other witnesses saw Lyons leave the house on Holmes Avenue at 1:15 p.m. March 9 with Amiah.
Lyons, 20, has told family, friends and police various locations where the girl should found alive.
All of these locations were checked by police.
Some places where Lyons said the girl should be are locations that do not exist, Burkert said.
Police are asking the public to come forward if they saw Lyons or Amiah on March 9 or any day afterward.