User blog:Wildoneshelper/Candy Crush Whodunnit Episode 2

It's been a busy evening in Candy Crush Saga Wiki Police Station...

A murder/suicide is reported in Soda Swamp as the creator of Level 419 drowned in the swamp.

Forensic evidence shows that the lungs are filled with soda matched with the swamp and the oxygen content of the blood is low, hinting that the murder is taken place in the swamp. Hemorrhaging is found near the lungs and a faint bruise is seen around the neck, hinting that the victim is likely murdered. The body was found approximately 3 hours after the crime.

There were no witnesses at that time.

Here are the suspects:


 * Creator of level 421
 * Creator of level 425
 * Wildoneshelper
 * Lefty7788
 * Tiffi
 * Mr. Rockstar

Interrogation excerpts:
 * Creator of level 421: "I'm never jealous about him! I only drove past the lake!"
 * Creator of level 425: "Since people voted the level as the hardest in Reality, there's no reason why I should kill him."
 * Wildoneshelper: "How would I do that when I'm on the wiki?"
 * Lefty7788: "I know the rules and I never play foul!"
 * Tiffi: "I love this level and I won't do that to the creator!"
 * Mr. Rockstar: "I always love the taste of the swamp, so I want to drive down there to drink some."

Data base:
 * Level 419 and level 421 are disputed to each other of their difficulty.
 * Creators of level 419 and 425 once have an argument of their co-op level 668.
 * Lefty7788 once made a meme that he would kill the creator who created level 419.
 * Wildoneshelper used more than 40 attempts on that level.
 * Mr. Rockstar quit playing Candy Crush Saga since he could not pass level 419.
 * Tiffi was a friend of the creator of level 419.
 * Several gloves are found in Mr. Rockstar's wardrobe.
 * All the suspects drove their cars past the swamp, among them, one of them stopped.

Who killed the creator level 419?