ABC News’ Phil Lipof spoke with Manuel Oliver, the father of Joaquin Oliver, on what would have been his 23rd birthday, and how he hopes to prevent families from experiencing similar tragedies. ABC News Live Prime, Weekdays at 7EST & 9EST WATCH the ABC News Live Stream Here: youtube.com/watch?v=w_Ma8oQLmSM SUBSCRIBE to ABC NEWS: bit.ly/2vZb6yP Watch More on abcnews.go.com LIKE ABC News on FACEBOOK facebook.com/abcnews FOLLOW ABC News on TWITTER: twitter.com/abc #parkland #news #abcnews