Quite the opposite. Reagan was NOT responsible for the downing of Iran Air 655, except in the most abstract sense, as the commander is responsible for all the actions of all the men under his command.
In both cases a civilian airliner was flying through an active combat area, was misidentified as a legitimate target and shot down.
Sometimes sh!t happens.
Your comparison of him to the hero Ronald Reagan is disgraceful and you should be ashamed, if you had a conscience. Putin and Reagan are complete opposites and are nothing alike at all!
Not the opposite, the American military and their Commander in Chief accepted responsibly for the incident while the U.S Navy was under attack.
Putin is in the middle of committing a crime of invading a peaceful neighbor, and is trying desperately to cover up his men shooting down a civilian airliner.
You are for some reason taking a path of supporting the enemy, since the free world is evidently still under threat from the militant and empire focused Russians.