Thousands gather in emotional candelight vigil to remember off-duty Las Vegas police officer and father-of-two who was killed in Vegas shooting

• Charleston Hartfield was remembered by his family and thousands more after his funeral on Thursday
• He was a 'very special, beautiful man,' Vegas' mayor said; he leaves behind a son and young daughter
• Stephen Paddock, 64, had cried out in the night in the weeks prior to his Sunday rampage, his girlfriend said
• Marilou Danley, 62, has been speaking to the FBI since arriving back in the US from the Philippines on Tuesday
• She said he had developed 'mental health symptoms,' inside sources said - but the FBI aren't sure of motive
• They don't believe his mental health had deteriorated so badly that he could have committed mass murder
• Investigators are also looking at what he did in the hour between his last shots and SWAT finding him dead
• It also emerged Thursday that Paddock has rented a hotel room overlooking Chicago's Lollapalooza in August
• Cops said he didn't arrive at the hotel; he also rented a condo overlooking a Las Vegas fest in September
• Paddock killed 59 people including himself, and injured 489 others at the Route 91 Harvest music festival
• Number of critically injured people has dropped from 58 on Wednesday to eight today, hospital system said