( CNN ) -- A body found near Lubbock , Texas , has been identified as that of a baby sitter seen in a motel surveillance video with a longtime family friend charged in the case , authorities said Wednesday . The medical examiner identified the remains found Monday about seven miles outside of the city as belonging to Elizabeth Ennen , 15 . She had been strangled , Capt . Greg Stevens told CNN . Stevens told reporters that Humberto Salinas Jr. , 45 , was being held on a $ 250,000 bond on an aggravated kidnapping charge . Police are talking with the district attorney about taking a murder charge to the grand jury , he said . Elizabeth was reported missing after baby-sitting at a motel for Salinas , who was a friend of the Ennen family and the father of her boyfriend , police said . The girl did baby-sitting jobs several times for Salinas at the motel , where he lived , police said . Stevens would not say whether Salinas was cooperating , but he indicated the remains were not found by chance or through a tip . Elizabeth was reported missing January 5 , and Salinas was charged in the case on Friday . Are you missing a loved one ? Share your story . A relative of Salinas declined comment when contacted by CNN Wednesday . Stevens defended the time it took to conduct the investigation and arrest Salinas , saying the suspect was a family friend who deceived the family and police on the girl 's whereabouts . But police believe Elizabeth was dead by the time they got a report that she was missing , Stevens said . `` They [ the family ] trusted this guy to speak ... to the officer , '' said the captain , who would not comment on a possible motive . Lily Huckabee , Elizabeth 's aunt , told HLN 's Nancy Grace that the girl 's mother , Virginia , `` is holding on the best she can ... . '' Salinas was married and `` always presented himself very respectful , '' said Huckabee , who described Elizabeth as loving , caring , shy and interested in music . Police have a January 4 surveillance video of Elizabeth being taken from the Carriage House Inn , but they did not know of it when they began their investigation , Stevens told CNN . According to an arrest affidavit , the video shows Salinas holding the teen 's arm and leaving the motel , he said . `` We believe he killed her while he was gone with her , '' Stevens said . Salinas went to Elizabeth 's home and talked with her mother early January 5 , police said . He helped her file an initial report , the captain said . According to that report , Salinas said he brought Elizabeth home from the motel and went back to get her purse . When he showed up at the house , the mother asked about her daughter 's whereabouts . The suspect indicated Elizabeth might have left the neighborhood with his son , believed to be 18 or 19 , Stevens said . `` He began misdirecting the investigation , leading it in the opposite direction of the truth , '' the officer said . Police initially classified the case as a runaway , but within days learned the son had a solid alibi . They began looking at the elder Salinas , who initially gave another location for the baby-sitting , said Stevens , adding police for much of the investigation believed Elizabeth had disappeared from her home . `` We came around 180 degrees , '' said Stevens , adding an investigator suggested they check with the Carriage House Inn on possible video . Officers saw the video on the same day they arrested the suspect , police said . Stevens defended his department from criticism on the time it took to make an arrest and find the body . `` These ( type of cases ) can often take years , '' he said . A candlelight vigil in Elizabeth 's memory is scheduled for Thursday night at Monterey High School , where she attended , CNN affiliate KCBD in Lubbock reported . Her funeral is Friday . Diena Thompson , the mother of a girl found dead in a Georgia landfill , told HLN 's Jane Velez-Mitchell she has issued financial assistance from the Somer Thompson Foundation to Elizabeth Ennen 's mother . Thompson 's daughter , Somer , was taken from her Florida neighborhood in October 2009 . The child was raped and killed and her body left under a pile of trash . CNN 's Phil Gast contributed to this report . Watch Nancy Grace Monday through Sunday starting at 8 p.m . ET on HLN . For the latest from Nancy Grace click here .
Elizabeth Ennen , 15 , was missing since January 5 ; her body was found near Lubbock . Police said she was baby-sitting at a motel for the man arrested in case . Comment: Police said Salinas misdirected their initial investigation .