Conservative lawmakers and columnists denounced Donald Trump's public attacks on Rob Reiner after the actor-director and his wife, Michele Singer Reiner, were killed and Los Angeles police said their son was arrested.Trump posted that Reiner died "reportedly due to the anger he caused others" and later at the White House said he was "not a fan of Rob Reiner," comments critics called disrespectful and cold amid a weekend that also saw a campus shooting and an antisemitic massacre in Australia.Los Angeles Police Department investigators say Nick Reiner, 32, was booked for murder and is being held without bail while probes continue, and commentators warned that such presidential rhetoric risks deepening national divisions and distracting from pressing policy fights.