engaged in some of the heaviest fighting since the start of its invasion of gaza. people there are being told to move further south as israeli forces step up their operation against hamas, designated a terror organisation by many western governments. the united nations is warning of an even more hellish scenario in the region with no safe places for people to go. this map shows the main districts of gaza a huge flow of people were told to leave their homes more than a month ago and move to southern gaza. the un says nearly 1.9m people have been forced from their homes in this way since october the 7th. that s more than 85 % of the population in gaza. this is the latest damage assessment map of the territory, as shown here in red. the worst hit areas you can see in the north of the strip. unconfirmed reports claim israeli troops may try to destroy the vast network of hamas tunnels underneath the gaza strip by flooding them with sea water. our diplomatic correspondent, paul
sderot, israel. how is israel expanding its ground assault? reporter: i sat down with israel s top tank commander to talk about how tanks are going to play a central role in the offensive in the south as today the first israeli tanks were spotted in southern gaza. as israel expands its ground offensive into southern gaza the brigadier general, the head of israel s armored corps, said tanks will once again be central to israel s war strategy. reporter: israeli tanks were at the tip of the offensive into gaza in october, clearing the way for infantry troops to move into dangerous and densely populated cities. ibrahim says this kind of coordination is a lesson learned from russian failures in ukraine. translator: we saw where they only fought with tanks alone they were more vulnerable. this overcomes almost every problem on the battlefield. reporter: israeli tanks are pushing through, not around residential buildings, reducing entire neighborhoods to rubble to minimi
the missing person, did not see any signs of all. play it s like what, i know i m just different. i ll just feel like something s lost. i very, very much believe that my friend was in danger. did you get the impression you were a list of possibles? definitely. the husband, he was under suspicion, basically immediately. there were searches of his own the husband was cooperative. the boyfriend was not. got a warrant for his home, his phone, his computer. this was a very complicated case. elizabeth mattered. she i had gotten a call saying, you ll never believe this. you re like, this is it. it was just a picture, shut up one they on social media back in 2014. it was an early offering on our missing america series. and that bright, open face, the questions that begged for answers. who was elisabeth sullivan? completely brilliant. she was almost an unacknowledged genius. i don t even know how to describe it, it was like this tornado mom that was disheveled, she
it s true, it s like he vanished into thin air. is very confusing. the a s don t go missing. this one did and hasn t been seen since. was he murdered? was it suicide? did he just walk away? whatever happened here is well planned out. he was the first to investigate coast jerry sandusky. could there be a link between that case and his disappearance? somebody knows something or a lot of somebodies do. somebo hello and welcome to dateline. ray gricar was the first to invest in applications coast jerry sandusky sexually abused the child long before the scandal made headlines. seven years later he mysteriously disappeared. the strange turn of events left people asking was there a connection? here is lester holt with the case of the missing d.a.. the clues are tantalizing. a sporty red car. a speck of cigarette ash. battered hard drive. it absolutely is a mystery. what do those clues say about the sudden disappearance of the district attorney who left them behind?
dad is kneeling, that was the first time i ve ever seen him cry. they had a tumultuous marriage. there would be yelling and maybe slamming doors. according to him, he sees lisa with a gunshot wound to the head. initially ruled a suicide. her sister went to the missouri state highway patrol to express their believed that this was a murder. she had been having an affair with her boss. the prosecutor says after he shot his wife, he washed his hands and washed his forearms. they called us back and started the trial. i thought they made one of the worst mistakes i d ever heard of. it was obvious there was something not right. the only thing i ever wanted was for everyone to hear the truth. i told them i would fight with everything i had. that s the promise i made. hello, and welcome to dateline. for many, the holiday season is a special time. for the jennings family, one christmas eve turned into a waking nightmare. it was followed by gunshot and a frantic call