A man came into the big hall of LVPD building. He looked around, confused and sweating, like he didn't know what to do next. He held his head with one hand and leaned against the dark-marble wall. The girl from reception noticed this man and came to him.

"Can I help you?" she asked. Suddenly she saw that he's sweaty and gasping for air.

"Are you ok? Should I call an ambulance? Sir?...Can you hear me?" she shook him lightly and he fell to her feet. Now she could see what's wrong. The man had big dark red spot on his shirt. Blood, a lot of blood. God... she thought and stared on the lifeless person in shock. A young woman opposite her noticed them. Her eyes widened and her scream froze everyone's blood.

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In a few minutes, whole building knew about it. The unknown man was, unfortunately, dead. Everyone, including the young receptionist was rushed out of hall. The body was checked by doctor Robbins himself and behind him nervously stood the sheriff. Grissom stopped in the door frame, smiled a little and came to them.

"What's different with this body, that you wanted directly us?" Grissom asked the sheriff.

"It's here. Dead body in the police building is a big trouble and there are plenty of reporters outside, who wanna know what happened."

"I can tell you that," said doctor Robbins. "He was murdered. Stabbed into the chest. He's got no ID." He waved on assistants to take the body to the morgue and left.

"Doctor?" the sheriff started

"I know. Priority case." Robbins interrupted and disappeared out of the room .

Grissom turned away from sheriff without a word and started to process the scene. The sheriff thought that he really can't do nothing more to hurry the investigation and left, too.

Grissom was taking photos of the hall. Few minutes later he heard steps and someone snooze. He turned around and saw Sara standing near the door. Her red eyes were hidden behind sunglasses and she was holding a handkerchief.

"You ok?" he asked her.

"Flowers hate me." she answered and snooze again.

"Allergy? On what?"

"I'd like to know, too." she said after another snooze.

"Go home." Grissom said .

"No, I'm fine. I can work." she tried to assure him.

"It's not a favor, Sara. You could contaminate the evidence." Sara looked at him in disbelief for a while and wanted to protest. Then she admitted that Grissom was right.

"Fine. See you later." she said and left.

An hour later, everyone was working hard. Greg got a blood sample and he was trying to find a match in database. Grissom and Catherine were processing victim's clothes, doctor Robbins was preparing autopsy and Nick and Warrick had a robbery in a jewelery store. Luckily, nobody was hurt, because the shop was closed. The owner was away, taking new stuff. When he returned, he found the door broken and empty show cases. He didn't hesitate and called the police. Warrick was whistling when he came into the shop with the flashlight.

"That's what I call a real mess." he said and looked around. Glass was all over the floor.

"What do you think? Junkie hasn't money for another dose?" said Nick.

"Maybe, but I'm not sure if anyone would buy it." Warrick doubted . Then he saw that among all the glass on the floor was a picture, which was once decorating the wall.

"That's weird. Why would anyone throw down only one picture and leave the others hanging?" Warrick thought loud. Meanwhile Nick found broken glassy paper-weight.

"How can you break paper-weight?" Nick asked .

"You drop it on something hard. And definitely weren't those show cases." Nick packed it and Warrick looked under the show cases, which used to contain expensive jewels. Like everywhere on the floor, even in there was glass. But when he checked there with the flashlight he saw something bright. He reached for it with his gloved hand and brought out a knife with wooden handle. There was blood on the blade. They packed it too.

"Looks like fight with an accomplish." said Warrick.

"Right here? I don't know. Maybe." said Nick. "But we definitely got two offenders."

They didn't find anything more important then this bloodied knife. All the evidence was in a box which they put in the trunk of their car. Then they headed back to lab.

Meanwhile doctor Robbins was opening victim's chest. He looked inside, then quickly stepped away and reached the phone.

Greg put the blood sample under the microscope. He looked down at it and the color left his face.

In another lab rang Grissom's phone. He answered, listened for a while and then hang up with frightened eyes. Catherine was watching him, confused. Grissom dialed sheriff's number.

"We need to evacuate the building!" he screamed in the phone .