WASHINGTON (CBS) Mourners in Las Vegas lit candles for Charleston Hartfield overnigh, the off-duty police officer killed in Sunday's mass shooting. 58 white crosses now line the Las Vegas Strip, a tribute to all the concert goers killed by Stephen Paddock that day.
Investigators are still trying to figure out what led the 64-year-old to open fire at the Route 91 Harvest Music Festival. Officials say he had may have had his eyes on other outdoor events with large crowds.
They say he booked, but never checked into, a hotel room in Chicago that overlooked the Lollapalooza music festival. Same goes for rooms overlooking the Life is Beautiful festival in Las Vegas. He also researched locations around Boston's Fenway Park.
"Until they actually completely complete this investigation we're not going to know what was on his mind and we may never know," commented Randy Sutton, Retired Veteran of the Las Vegas Police, and CBS News Consultant.
The massacre in Las Vegas has some Republicans on Capitol Hill open to banning the piece of equipment Paddock used to transform his semi-automatic gun into fully automatic. It's called a "bump-stock". Democratic Senator Dianne Feinstein has already introduced legislation that would ban the import and sale of bump-stocks. House Speaker Paul Ryan wants Congress to look into the idea:
"Automatic weapons have been outlawed for many many years,” said Ryan. “This seems to be a way of going around that, so obviously we need to look at how we can tighten up the compliance.
On Thursday the NRA also signaled its support. In a statement - the association's CEO said such devices should be subject to additional regulations.
President Trump, when asked his opinion on banning bump stocks, told reporters, “We'll be looking into that over the next short period of time.”