Lindsay sat in ballistics with Danny. They'd placed both bullets from the first two crime scene and hoped to match them up. Danny was entering the data while Lindsay was waiting on the striation results. Flack entered ballistics and tapped on the door.

"Linds, I gotta talk to ya." Flack said.

"What about?" Lindsay asked.

"I gotta get your statement." flack explained.

Lindsay was silent, but she nodded slowly. She looked to Danny. "Let me know the results."

Danny nodded.

Lindsay followed Flack out of ballistics. They walked through the halls until they reached the office. Flack took Danny's chair while Lindsay sat in her own. Flack took out his notepad and opened it up.

"Ok, let's start with what happened after I left." Flack said.

Lindsay took a deep breath. "Um, Danny was helping the ME's load the bodies. I was standing near the window and…I felt uneasy."

"Uneasy?" Flack repeated.

Lindsay nodded. "Yeah, I-I felt like….we were being watched. So I went out to the car and grabbed the vests. I got to the curb and my foot slipped off. I fell onto the sidewalk. Then I hear this…explosion, which was the weapon firing. I looked up and the officer was falling to the ground."

"Did you hear anything, see anything leading up to that point that seemed…out of place?" flack asked.

Lindsay shook her head. "No. but um…after the shot, the car I was next to sped off."

Flack frowned. "Do you know what kinda car it was?"

Lindsay thought back. She remembered Danny pulling up to the curb, but she didn't remember seeing the car when they pulled up. "No. I uh…I don't remember it being there."

Flack nodded and wrote down Lindsay's statement. "Ok, Lindsay. Thank you."

"Anytime Flack." Lindsay said.

Flack put his book back in his pocket. "so tell me somethin', we any closer at finding' the shooter?"

Lindsay shook her head. "To tell you the truth, Flack, I don't know. We've found so little evidence at the scenes. It's not looking good."

Flack nodded. "I understand." He stood up. "Keep doin' what ya can."

Lindsay nodded.

Flack walked out of the office. Lindsay sat back in her chair and sighed. Suddenly she was doubting herself and her ability as a CSI. Sure, she'd help the team catch a serial killer who escaped from Miami. She caught a woman whose bruise was too black. But she couldn't catch a cop killer?

"Montana, got the ballistic results." Danny called.

Lindsay jumped in her chair. She hadn't heard him enter at all. Lindsay turned and faced the door. "And?"

"Striations match. Our bullets are from the same gun, which means it's the same guy." Danny explained. He walked to his desk and sat down.

"Did Adam get back to you on trace?" Lindsay asked.

Danny nodded. "Turns out their denim jackets were Type IIIA vests, just like Wilson's. But other than that, nothin'. We got nothin' Montana."

Lindsay sighed. She leaned her chin into her hands. "We can't be out of evidence."

Danny shrugged, "Well, let's go over what we know and have." Danny started listing them on his fingers. "We know he's targeting the NYPD, which narrows down our suspect list, but widens our victim list. We got a print, but no hits. Officer Wilson and Detectives Green, were both shot with a long ranger high powered weapon that leaves no trace. The bullets are strong enough to pierce standard issue vests."

Lindsay shook her head. No, they couldn't be out of evidence now. There had to be something they weren't seeing. Something they weren't thinking of. Wilson held no evidence due to the distance of the weapon. If the Green's clothing were in the same state, then the distance had to be the same. That was it, the distance! Trajectory!

"That's it! That's what we're missing!" Lindsay bolted up form her chair. Lindsay leaned across the desk and kissed Danny passionately. "You're a genius!" She turned and ran out of the office.

Danny stared after her for a moment and then followed her. "What are you talkin' about?"

"We were missing trajectory! We got a partial from Wilson, but at the diner we have where the bullet was lodged into the wall." Lindsay explained.

Danny nodded. "Good thinkin' babe."

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Danny stood in the diner, placing the rod into the wall. He flipped the switch, activating the red light. Lindsay began spraying the air, following the red line through the diner. Danny followed her out of the diner and across the street. Lindsay stopped spraying and inspected the area.

"This is too high for a shooter, even if he was kneeling." Lindsay said.

"Maybe the shooter used a car to aim? It's about as high as a trunk." Danny said.

Lindsay frowned. She looked a quick survey of their location on the street.

"What's wrong?" Danny asked.

"This is where I fell." Lindsay explained. Danny frowned. "And I heard a car speed off after the second shot."

Danny held up his index finger. "Hold that though Montana." Danny jogged across the street to the truck. Lindsay watched him pull out a computer and his kit. Danny jogged back to her and passed her the computer.

"Turn around." Danny ordered.

"What?" Lindsay asked.

"Just trust me." Danny replied.

Lindsay obliged Danny's request and turned around. She felt Danny run something down her shoulder and sleeve.

"Alright." Danny said.

Lindsay turned around again. "What was that about?"

Danny pulled out the small spray bottle. He sprayed the small pad. Lindsay watched as the white pad turned dark blue in the center. "Positive."

"GSR." Lindsay stated.

"And that's a high concentration." Danny said. He looked up at Lindsay. "What's the temperature today?"

Lindsay frowned. "Uh…seventy-five."

Danny nodded. He set the pad and bottle back in the kit and pulled off his gloves. He took the computer from Lindsay and opened it up. Lindsay moved beside him, watching his actions. "Ok ,so at seventy-five degrees, sound will travel at 345.9722222222222 millimeters per second, which converts to 1135.0794692330123 feet per second, and that converts to 774.9777777777778 miles an hour."

"Right." Lindsay nodded.

"You said that these bullets travel at 2,756 feet per second, so we bring that into the equation and…the car was 0.411857 feet from you." Danny explained.

"But there was no one outside the car when I fell." Lindsay replied.

Danny nodded. Suddenly his phone began ringing. Lindsay took the computer from Danny allowing him to pull out his cell. "Messer."

"Danny, it's Sheldon. Mac's calling everyone to a meeting. Do you know where Lindsay is?" Hawkes asked.

"Yeah she's with me. When's the meetin'?" Danny replied.

"As soon as you two get back to the lab." Hawkes explained.

"Alright, we're on our way." Danny said and hung up the phone. He knelt down to his kit.

"What's going on?" Lindsay asked.

Danny closed his kit and stood back up. "Mac's callin' a meetin'."

Lindsay was still looking at the ground. "Danny." she pointed to the ground.

Danny looked down. Two shells, matching their first weapon, were lying in a pool of some dark liquid. Danny picked them up and placed them into the bags.

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ok, so i actually found that program online to calculate everything. i have absolutely no idea if it's right...but for the record, I DO MY RESEARCH FOR FICS!!!

i own nothing