'Nightline' Daily Line, July 27: Michelle Obama at Olympics

9:51 p.m. ET: Beverage industry groups are planning ways to oppose a proposed soda tax in the California city of El Monte because of fears other U.S. cities across America might adopt similar taxes on sugary drinks, reports Reuters.

The El Monte city council on Tuesday approved a measure that would add a 1 cent tax for every ounce of "sugar sweetened" drinks. The proposal is scheduled to be voted on by city residents in November's election.

Read the full story HERE

8:02 p.m. ET: Former Atlanta Falcons Safety Ray Easterling had a degenerative brain disease associated with repeated concussions, an autopsy report concludes.

Courtesy of AP

The medical examiner's report found that Easterling's brain had signs "consistent with the findings of chronic traumatic encephalopathy," a progressive degenerative disease that can be caused by multiple concussions, reports AP . Easterling died of a self-inflicted gunshot wound in April. He was 62.

Check out the video below of a "Nightline" report on the connection between football players' repeated concussions and degenerative brain disease:

6:25 p.m. ET: In the on-going Jackson family drama which began when Katherine Jackson disappeared from her California home for over a week; a deal has been reached on guardianship of Michael Jackson's three children.

Courtesy of AP

T.J. Jackson, the eldest son of Tito Jackson, will be co-guardian with Katherine Jackson, reports AP.

Read the full story HERE

6:15 p.m. ET: Chick-fil-A's Vice President of Public Relations Don Perry died "suddenly" Friday morning, the company confirmed. Perry was based in the Atlanta area and worked in Chick-fil-A's corporate communications department.

Perry's death comes amid controversy this week over comments that Chick-fil-A's CEO Dan Cathy made against gay marriage.

Read the full ABC News story HERE

5:00 p.m. ET: Tom Cruise and Katie Holmes' marital status wasn't the only thing that changed when they signed their divorce agreement earlier this month. The lavish lifestyle of their daughter, Suri, has undergone a radical overhaul, reports Yahoo.

Courtesy of AP

Now that Suri is living with her mother in New York City on a full-time basis, the 6-year-old is being introduced to such things as - gasp! - taxi cabs, instead of chauffeur-driven cars, and commercial airlines, instead of private jets. It's a whole new world for the pampered tot.

"Nightline" reported on Katie and Tom's lifestyle differences-and what role Scientology may have played in their divorce. Watch the video below:

4:45 p.m. ET: In the wake of the Colorado movie theater shooting, "Dark Knight Rises" composer Hans Zimmer has written a new piece to honor the victims called "Aurora." Zimmer sat down with "Nightline" to talk about his career and his work on the film. Tune into "Nightline" next week to watch the full interview.

1:55 p.m. ET: ABC News' Jeffery Kofman tweets:

1:05 p.m. ET: One week after Colorado's movie theater shooting, Maryland cops arrested a heavily armed man who told his employer he was a "joker" who was going to "blow everyone up."

Read the full story HERE

12:40 p.m. ET: UPDATE: The mistress of Houston lawyer Jeffrey Stern was given a 20 year prison sentence today in exchange for pleading guilty to three attempts to kill her lover's wife.

Read the full story HERE

Credit: ABC

Michelle Gaiser, 39, pleaded guilty to solicitation of capital murder of for the 2010 attempts to kill Yvonne Stern, 54. She was also accused of plotting her lover's murder from behind bars. Watch the "Nightline" report HERE:

11:10 a.m. ET: "Nightline" anchor Bill Weir talked with First Lady Michelle Obama in London about her past Olympic dreams and the Aurora shooting in Colorado. Watch the video of the interview HERE:

9:50 a.m. ET: LET THE GAMES BEGIN! Tonight kicks off the 2102 Olympics. "Nightline" anchor Bill Weir will be live fron London tonight!

AP Photo