Lead detective in Pistorius case facing seven counts of attempted murder

>>> my goodness. all right. lure looking at live pictures of the considerate house in south africa where there are new questions this morning not only about olympian oscar pistorius but about the top detective on the case. that officer is facing his own allegations of attempted murder for allegedly opening fire on a van a few years back. and now top prosecutors are calling for botha to be dropped from this case. one official is calling the timing of attempted murder charges against botha , quote, totally weird, saying the detective should be replaced. and on wednesday the prosecution case against pistorius began to unravel with revelations of a series of police blunders including a bullet that was never found and therefore left at the scene by the forensics team. investigators also lost track of a legal ammunition that was found inside the house, and botha walked through the crime scene without protective shoe coverings.

>> come on.

>> botha --

>> who do they think shot this woman, a kangaroo? give me a break. come on. this is just ridiculous.

>> well, botha also claimed that investigators found --

>> mike, you're our south africa legal expert here. what's going on here?

>> off of what we know so far, just according to reports, i would say it's going to be pretty difficult to prove, you know, premeditation. two people. two people, no witnesses. i mean, he killed this poor woman, no doubt about that.

>> right.

>> but premeditation? i think that's going to be tough to prove.

>> this detective also claimed that investigators found banned testosterone at the home but later said testing was still being done on the substance. he then admitted he didn't even read the whole name on the container which the defense says contained herbal supplements . and while botha said neighbors heard fighting coming from the house, he also conceded that one of the witnesses lived at least 1,000 feet away.

>> do you think that botha knows inspector kluzell?

>> he saw ryan braun 's name on it. he just assumed.

>> prosecutors believe pistorius put on his prosthetic legs and walked about 23 feet into his bathroom before the shooing and killing his girlfriend, model reeva steenkamp, who was locked in an adjacent toilet room. investigators say it appears the bullets were fired at a downward angle, supporting the theory that pistorius had time to put on his legs. the story claims he was not wearing the prosthetics and was terrified of a possible burglar. under cross-examination, detective botha --

>> when i'm scared somebody's breaking in my house, i run and start shooting wildly through a bathroom door.

>> the detective admitted there was not enough evidence to disprove pistorius ' version of events. pistorius is expected to find out today whether he will be granted bail or remain in prison.

>> this is a bizarre case.

>> lock the guy up. keep him locked up.

>> bottom line, young woman is dead.

>> exactly.

>> that's not in dispute.

>>> coming up next, border security takes center stage in the immigration debate . the white house says our border is more secure than ever, but republicans disagree. writer for "bloomberg businessweek" elizabeth dwoskin is here with