5 Things to Know This Morning

— -- Your look at the five biggest and most buzz-worthy stories of the morning.

1. Deflate-Gate: Tom Brady Says He 'Didn't Alter the Ball in Any Way'

New England Patriots quarterback Tom Brady said he "didn't alter the ball in any way" following accusations that the team used under-inflated footballs during its win over the Indianapolis Colts on Sunday.

"I have no knowledge of anything," Brady, a three-time Super Bowl winner, said today during a news conference. "I was as surprised as anybody when I heard Monday morning that this happened."

"I choose the balls I want to use for the game," Brady said. "That's what I expect to go out on the playing field with."

2. EXCLUSIVE: Marco Rubio Moves Toward 2016 Presidential Bid

Sen. Marco Rubio has begun taking concrete steps toward launching a presidential bid, asking his top advisors to prepare for a campaign, signing on a leading Republican fundraiser, and planning extensive travel to early-voting states in the coming weeks, ABC News has learned.

"He has told us to proceed as if he is running for president," a senior Rubio advisor tells ABC News.

3. Inside the Frat Party that Caused $75,000 of Damage at a Ski Resort

Students from the University of Michigan, including members from six fraternities and sororities, are accused of causing thousands of dollars' worth of damages during a weekend stay at two northern Michigan ski resorts.

The students, which included members of the Sigma Alpha Mu, Pi Kappa Alpha and Chi Psi fraternities, as well as members of the Sigma Delta Tau, Alpha Phi and Delta Gamma sororities, are being accused by resort operators of trashing hotel rooms and hallways, including ripping off cabinet doors, destroying ceilings and rugs, and busting up tables, during a Jan. 17-18 weekend stay at the Treetops Resort and Spa in Gaylord, and the Boyne Highlands Resort in Harbor Springs.

4. Two More Bodies Found at Annapolis, Maryland, Mansion Fire

Two more bodies were recovered Thursday from the massive fire at an Annapolis, Maryland, mansion, where , among the total of six people -- two grandparents and four of their grandchildren -- who are believed to have perished, authorities said.

Relatives of those feared to have been inside the home thanked their well-wishers earlier Thursday, but asked people to respect their privacy, noting that "our loss demands time and quiet reflection."

5. Chilling Video Shows Armed Suspect Forcing Woman into Car Trunk, Driving Off

Police released surveillance video of a brazen ATM robbery and kidnapping in Arlington, Texas, in hopes of identifying the suspect.

The video shows the victim pulling up to a drive-in ATM at a Wells Fargo bank early in the morning on Jan. 14 and being approached by a man brandishing a gun. He can be seen ordering the woman into the trunk of her car then driving off with her.