Make use of the article to answer the questions.

Boston (CNN)She knew something awful had happened. It was smoky and all she could hear were muffled screams. Her foot was turned sideways and her legs wouldn't work right. And her good friend, Krystle Campbell, was just lying there on the ground.

Karen Rand -- she's Karen McWatters now -- dragged herself across the pavement. She wanted to get closer to Krystle so they could talk and take comfort from each other in the midst of so much chaos.

"I got close to her, " she recalled. "For some reason, I got close to her head and we put our faces together."

Krystle said that her legs hurt. They were the last words she'd speak. The two women held hands until Krystle's went limp.

McWatters was the fifth witness of the first day of the terror trial of accused Boston Marathon bomber Dzhokhar Tsarnaev, who is accused of detonating pressure cooker bombs with his brother to punish the United States for policies they believe inflict suffering on Muslims.

Three people were killed in the blasts: Campbell, a 29-year-old manager for a restaurant chain; Martin Richard, an 8-year-old boy; and Lingzi Lu, a 23-year-old grad student.

More than 250 others were injured. And the first day of the trial -- after opening statements -- revolved around a number of survivors of the attack, who recounted in detail the chaos of that day. Prosecutors called them to the stand to paint a picture of the havoc and pain the bombings inflicted. Tsarnaev's attorneys chose not to cross-examine any of the survivors.

1. What happened to Karen?
2. Who was with her?
3. Did she make it?
4. Was Karen a witness in the trial?
5. Against who?
6. What is he accused of?
7. Why?
8. Was anyone else hurt?
9. How many?
10. Was anyone else killed?
11. How many?
12. Did any survivors also testify?
13. Were any of them cross-examined?
14. Has Karen gotten married?
15. How many people testified before her?

Numbered answers:
1. Caught in the Boston Marathon Bombing.
2. Krystle Campbell
3. No
4. Yes
5. Dzhokhar Tsarnaev
6. detonating bombs
7. punish the United States
8. Yes
9. More than 250
10. Yes
11. 2 others
12. Yes
13. No
14. yes
15. Four