Constitution Law: Exceptions to the Fourth Amendment

Chris Rock is lying on the street bleeding from his head when Police Officer Tom Jones arrives and asks him what happened. “That jerk Will Smith smacked me with some trophy and robbed my money.
Officer Jones: I know Smith.
Chris Rock: He’s a thief and a drug dealing son of a …
P.O. Jones: He’s a drug dealer?
Rock: Yeah, he was supposed to sell me some dope and instead he robs me and smacks me in the head.
Jones: Do you know where he lives?
Rock: Yeah 123 Main Street apt 3.
Jones: And you’re sure he has drugs there?
Rock: Yes sir.
After this exchange, Jones goes to the address and knocks on the door, a young woman opens the door and asks, “Can I help you?”
Smith: I’m a police officer and I want to search this apartment.
Young woman: “You have a warrant?”
At that moment, Jones hears gun shots coming from a room inside the apartment. He rushes past the young women and kicks in the door. He sees Smith lying on the floor and another man standing over him holding a gun and a bag of cocaine. The man immediately drops the gun and puts his hands up. “It’s his gun, he was trying to rob me but I grabbed it from him and it went off.”
Smith is lying on the floor bleeding from his shoulder but is conscious and does not seem badly hurt. Jones asks the man, “Who are you?”
“I’m Joe Davis. I’m his roommate.”
Jones arrests Davis and Smith. He puts both in handcuffs and begins searching. He opens a closet door.
Smith: You can’t search unless you have a warrant.”
Jones: Shut up. Look what I found – guns and money.
It turns out the gun that Davis’s used to shoot was illegal but Davis claims it was owned by Smith.
The evidence seized is the gun used by Davis, the guns and the money in the closet, and the bag of cocaine. Based on the legality of Officer Jones’s actions which pieces of evidence will be admissible. Explain why or why not they will be admissible.
refer to what in the Constitution either allows or prohibits the actions described.